← Back to CVE Explorer

CVE-2026-29146

Full vulnerability record from the local CVENow database.

Description

Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109. Users are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue.

Severity
HIGH
CVSS score
7.5 (v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-04-09 20:16:24.577000
Last modified
2026-10-26 22:10:00.163000
View original CVE JSON
{
  "id": "CVE-2026-29146",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-09T20:16:24.577",
  "lastModified": "2026-10-26T22:10:00.163",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109.\n\nUsers are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de Padding Oracle en el EncryptInterceptor de Apache Tomcat con configuración predeterminada.\n\nEste problema afecta a Apache Tomcat: desde 11.0.0-M1 hasta 11.0.18, desde 10.0.0-M1 hasta 10.1.52, desde 9.0.13 hasta 9..115, desde 8.5.38 hasta 8.5.100, desde 7.0.100 hasta 7.0.109.\n\nSe recomienda a los usuarios actualizar a la versión 11.0.19, 10.1.53 y 9.0.116, que soluciona el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Tomcat",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "11.0.0-M1",
              "lessThanOrEqual": "11.0.18",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "10.0.0-M1",
              "lessThanOrEqual": "10.1.52",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "9.0.13",
              "lessThanOrEqual": "9.0.115",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "8.5.38",
              "lessThanOrEqual": "8.5.100",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "7.0.100",
              "lessThanOrEqual": "7.0.109",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "affectedData": [
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 10",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10.2"
          ],
          "versions": [
            {
              "version": "1:10.1.49-3.el10_2",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 10",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat9",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10.2"
          ],
          "versions": [
            {
              "version": "1:9.0.117-2.el10_2",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux_eus:10.0"
          ],
          "versions": [
            {
              "version": "1:10.1.36-2.el10_0",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat9",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux_eus:10.0"
          ],
          "versions": [
            {
              "version": "1:9.0.87-6.el10_0",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/o:redhat:rhel_els:7"
          ],
          "versions": [
            {
              "version": "0:7.0.76-18.el7_9",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 8",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:8"
          ],
          "versions": [
            {
              "version": "1:9.0.87-2.el8_10",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/a:redhat:rhel_tus:8.8"
          ],
          "versions": [
            {
              "version": "1:9.0.87-2.el8_8",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/a:redhat:rhel_e4s:8.8"
          ],
          "versions": [
            {
              "version": "1:9.0.87-2.el8_8",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 9",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:9"
          ],
          "versions": [
            {
              "version": "1:9.0.117-2.el9_8",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/a:redhat:rhel_e4s:9.2"
          ],
          "versions": [
            {
              "version": "1:9.0.87-2.el9_2",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/a:redhat:rhel_e4s:9.4"
          ],
          "versions": [
            {
              "version": "1:9.0.87-2.el9_4",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/a:redhat:rhel_eus:9.6"
          ],
          "versions": [
            {
              "version": "1:9.0.87-4.el9_6",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Web Server 6.2.3",
          "defaultStatus": "unaffected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_web_server:6.2"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Web Server 6.2 on RHEL 10",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "jws6-tomcat",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_web_server:6.2::el10"
          ],
          "versions": [
            {
              "version": "0:10.1.49-13.redhat_00011.1.el10jws",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Web Server 6.2 on RHEL 8",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "jws6-tomcat",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_web_server:6.2::el8"
          ],
          "versions": [
            {
              "version": "0:10.1.49-13.redhat_00011.1.el8jws",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Web Server 6.2 on RHEL 9",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "jws6-tomcat",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_web_server:6.2::el9"
          ],
          "versions": [
            {
              "version": "0:10.1.49-13.redhat_00011.1.el9jws",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Web Server 7.0.0",
          "defaultStatus": "unaffected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_web_server:7.0"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Web Server 7.0 on RHEL 10",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "jws7-tomcat",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_web_server:7.0::el10"
          ],
          "versions": [
            {
              "version": "0:11.0.21-5.redhat_00004.1.el10jws",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Web Server 7.0 on RHEL 8",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "jws7-tomcat",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_web_server:7.0::el8"
          ],
          "versions": [
            {
              "version": "0:11.0.21-5.redhat_00004.1.el8jws",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Web Server 7.0 on RHEL 9",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "jws7-tomcat",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_web_server:7.0::el9"
          ],
          "versions": [
            {
              "version": "0:11.0.21-5.redhat_00004.1.el9jws",
              "lessThan": "*",
              "versionType": "rpm",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 6",
          "defaultStatus": "unknown",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat6",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:6"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 8",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "pki-deps:10.6/pki-servlet-engine",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Enterprise Linux 9",
          "defaultStatus": "unaffected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "pki-servlet-engine",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:9"
          ]
        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat JBoss Web Server 5",
          "defaultStatus": "affected",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "packageName": "tomcat",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_web_server:5"
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      },
      {
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-10T18:17:02.531112Z",
          "id": "CVE-2026-29146",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-209"
        },
        {
          "lang": "en",
          "value": "CWE-642"
        }
      ]
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1240"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.0.100",
              "versionEndIncluding": "7.0.109",
              "matchCriteriaId": "21FCAD61-9B9D-4780-9EE2-2F28B3F951F5"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.5.38",
              "versionEndIncluding": "8.5.100",
              "matchCriteriaId": "769FDDAB-B636-43A6-BB06-CCE9185D5EA6"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "9.0.13",
              "versionEndExcluding": "9.0.116",
              "matchCriteriaId": "6CEA1F89-5276-42AF-819C-AF901A037E22"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.0.0",
              "versionEndExcluding": "10.1.53",
              "matchCriteriaId": "2092BF25-09E0-4601-B553-A2506C879028"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.0.0",
              "versionEndExcluding": "11.0.20",
              "matchCriteriaId": "1F39B82B-0E67-459D-8065-2C6EE7970D0D"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w",
      "source": "[email protected]",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/04/09/24",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:20405",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:20406",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:36787",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:36788",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:36789",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:36790",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:36876",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:36877",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:36878",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:36879",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:37136",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:37137",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:38505",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:39188",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:39189",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-29146",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457020",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29146.json",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ]
}