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    "cveMetadata": {
        "cveId": "CVE-2026-110931",
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "state": "PUBLISHED",
        "assignerShortName": "redhat",
        "dateReserved": "2026-10-15T05:36:55.655Z",
        "datePublished": "2026-11-05T16:04:53.045Z",
        "dateUpdated": "2026-11-05T16:04:53.045Z"
    },
    "containers": {
        "cna": {
            "title": "Keycloak-services: keycloak-services: unauthenticated jvm termination via saml 1.1 authoritybinding parsing loop",
            "metrics": [
                {
                    "other": {
                        "content": {
                            "value": "Important",
                            "namespace": "https://access.redhat.com/security/updates/classification/"
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                        "type": "Red Hat severity rating"
                    }
                },
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.5,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    },
                    "format": "CVSS"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A flaw was found in the SAML 1.1 assertion parser of Keycloak, a tool used for identity and access management. The issue occurs when the parser handles a specific element called AuthorityBinding within an authentication statement. Due to an incomplete fix for a previous vulnerability, the parser can enter an infinite loop that consumes all available memory, causing the entire Keycloak service to crash and become unavailable to users."
                }
            ],
            "affected": [
                {
                    "vendor": "Red Hat",
                    "product": "Red Hat Build of Keycloak",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "keycloak-services",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:build_keycloak:"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Red Hat Build of Keycloak",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "rhbk/keycloak-rhel9",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/a:redhat:build_keycloak:"
                    ]
                },
                {
                    "vendor": "Red Hat",
                    "product": "Red Hat Single Sign-On 7",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "keycloak-services",
                    "defaultStatus": "unaffected",
                    "cpes": [
                        "cpe:/a:redhat:red_hat_single_sign_on:7"
                    ]
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            ],
            "references": [
                {
                    "url": "https://access.redhat.com/security/cve/CVE-2026-110931",
                    "tags": [
                        "vdb-entry",
                        "x_refsource_REDHAT"
                    ]
                },
                {
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2553047",
                    "name": "RHBZ#2553047",
                    "tags": [
                        "issue-tracking",
                        "x_refsource_REDHAT"
                    ]
                }
            ],
            "datePublic": "2026-11-05T00:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-835",
                            "description": "Loop with Unreachable Exit Condition",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "x_redhatCweChain": "CWE-835: Loop with Unreachable Exit Condition",
            "workarounds": [
                {
                    "lang": "en",
                    "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
                }
            ],
            "timeline": [
                {
                    "lang": "en",
                    "time": "2026-10-14T12:56:48.000Z",
                    "value": "Reported to Red Hat."
                },
                {
                    "lang": "en",
                    "time": "2026-11-05T00:00:00.000Z",
                    "value": "Made public."
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Red Hat would like to thank Animesh Roy for reporting this issue."
                }
            ],
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                "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
                "shortName": "redhat",
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