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CVE-2026-2575 Keycloak: keycloak: denial of service due to excessive samlrequest decompression

🗓️ 18 Mar 2026 03:19:09Reported by redhatType 
cvelist
 cvelist
🔗 www.cve.org👁 29 Views

Unauthenticated attacker can trigger denial of service in Keycloak from a compressed SAMLRequest, causing memory exhaustion.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-2575
18 Mar 202603:19
attackerkb
CNNVD
Keycloak 安全漏洞
18 Mar 202600:00
cnnvd
CVE
CVE-2026-2575
18 Mar 202603:19
cve
EUVD
EUVD-2026-12766
18 Mar 202606:31
euvd
Github Security Blog
Keycloak: Denial of Service due to excessive SAMLRequest decompression
18 Mar 202606:31
github
Tenable Nessus
Keycloak < 26.5.4 Multiple Vulnerabilities
4 Mar 202600:00
nessus
NVD
CVE-2026-2575
18 Mar 202604:17
nvd
OSV
GHSA-XV6H-R36F-3GP5 Keycloak: Denial of Service due to excessive SAMLRequest decompression
18 Mar 202606:31
osv
OSV
MINI-7F5H-WQ4F-M4J2
19 Mar 202615:30
osv
OSV
MINI-V7VJ-PGQ3-JXP9
19 Mar 202614:30
osv
Rows per page
[
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-operator-bundle",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.4.10-1",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-rhel9",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.4-12",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4",
    "collectionURL": "https://catalog.redhat.com/software/containers/",
    "packageName": "rhbk/keycloak-rhel9-operator",
    "defaultStatus": "affected",
    "versions": [
      {
        "version": "26.4-12",
        "lessThan": "*",
        "versionType": "rpm",
        "status": "unaffected"
      }
    ],
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat build of Keycloak 26.4.10",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unaffected",
    "packageName": "rhbk/keycloak-rhel9",
    "cpes": [
      "cpe:/a:redhat:build_keycloak:26.4::el9"
    ]
  }
]

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