CVE-2026-112072
Full vulnerability record from the local CVENow database.
Description
vault-java-driver, a Java client for HashiCorp Vault, parses Vault's JSON responses with a vendored minimal-json parser that has no nesting depth limit. A deeply nested value raises a StackOverflowError, which escapes catch (Exception) handlers and kills the reading thread. A Vault token that can write but not read a KV v2 path can store such a value there, so every later read of that path through the driver fails. This requires Vault 1.19.x or earlier, because 1.20 and later reject values nested deeper than 298 levels. This issue affects io.github.jopenlibs:vault-java-driver 5.2.0 through 6.2.3 and is fixed in 7.0.0.
Severity
MEDIUM
CVSS score
6.5
(v3.1)
Vulnerability status
Received
Source identifier
abd028dc-c042-4c4d-9749-38d0f850af89
Published
2026-11-05 08:17:03.663000
Last modified
2026-11-05 08:17:03.663000
View original CVE JSON
{
"id": "CVE-2026-112072",
"sourceIdentifier": "abd028dc-c042-4c4d-9749-38d0f850af89",
"published": "2026-11-05T08:17:03.663",
"lastModified": "2026-11-05T08:17:03.663",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "vault-java-driver, a Java client for HashiCorp Vault, parses Vault's JSON responses with a vendored minimal-json parser that has no nesting depth limit. A deeply nested value raises a StackOverflowError, which escapes catch (Exception) handlers and kills the reading thread. A Vault token that can write but not read a KV v2 path can store such a value there, so every later read of that path through the driver fails. This requires Vault 1.19.x or earlier, because 1.20 and later reject values nested deeper than 298 levels. This issue affects io.github.jopenlibs:vault-java-driver 5.2.0 through 6.2.3 and is fixed in 7.0.0."
}
],
"affected": [
{
"source": "abd028dc-c042-4c4d-9749-38d0f850af89",
"affectedData": [
{
"vendor": "jopenlibs",
"product": "vault-java-driver",
"defaultStatus": "unaffected",
"collectionURL": "https://repo.maven.apache.org/maven2",
"packageName": "io.github.jopenlibs:vault-java-driver",
"programFiles": [
"src/main/java/io/github/jopenlibs/vault/json/JsonParser.java"
],
"repo": "https://github.com/jopenlibs/vault-java-driver",
"versions": [
{
"version": "5.2.0",
"lessThan": "7.0.0",
"versionType": "maven",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "abd028dc-c042-4c4d-9749-38d0f850af89",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6
}
]
},
"weaknesses": [
{
"source": "abd028dc-c042-4c4d-9749-38d0f850af89",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-674"
}
]
}
],
"references": [
{
"url": "https://github.com/jopenlibs/vault-java-driver/pull/81",
"source": "abd028dc-c042-4c4d-9749-38d0f850af89"
},
{
"url": "https://repo.maven.apache.org/maven2/io/github/jopenlibs/vault-java-driver/7.0.0/",
"source": "abd028dc-c042-4c4d-9749-38d0f850af89"
}
]
}