CVE-2026-15943
Full vulnerability record from the local CVENow database.
Description
A flaw was found in the Keycloak keycloak-services component, which handles the management of identity providers. The issue occurs when a delegated administrator updates an OIDC identity provider using a masked client secret sentinel value. Due to improper validation, Keycloak reuses the existing real secret even if security-sensitive fields like the token URL have been changed, allowing an attacker to redirect and capture the secret.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-07-17 12:17:03.313000
Last modified
2026-11-06 18:18:08.677000
View original CVE JSON
{
"id": "CVE-2026-15943",
"sourceIdentifier": "[email protected]",
"published": "2026-07-17T12:17:03.313",
"lastModified": "2026-11-06T18:18:08.677",
"vulnStatus": "Modified",
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}
],
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{
"source": "[email protected]",
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"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"availabilityImpact": "NONE"
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"ssvcV203": [
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"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
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"references": [
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"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:95762",
"source": "[email protected]"
},
{
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"source": "[email protected]",
"tags": [
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},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2501270",
"source": "[email protected]",
"tags": [
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]
}