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        "cveId": "CVE-2026-19278",
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        "dateReserved": "2026-08-07T15:16:51.217Z",
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        "dateUpdated": "2026-08-11T06:25:18.312Z"
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            "title": "Stackrox: stackrox: privilege escalation via unanchored regular expressions in auth m2m role mappings",
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                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 6.8,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
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            "descriptions": [
                {
                    "lang": "en",
                    "value": "A flaw was found in StackRox/RHACS Central's Auth Machine-to-Machine (M2M) token exchange. When an administrator configures M2M role mappings, the system uses unanchored regular expressions for matching claim values. This allows an attacker with a valid OpenID Connect (OIDC) token, whose claim value is a superstring of a configured pattern, to gain unauthorized access to roles they were not intended to receive. This can lead to privilege escalation within the system."
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            "affected": [
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                    "vendor": "Red Hat",
                    "product": "Red Hat Advanced Cluster Security 4",
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                    "packageName": "advanced-cluster-security/rhacs-main-rhel8",
                    "defaultStatus": "affected",
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                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2512524",
                    "name": "RHBZ#2512524",
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            "datePublic": "2026-08-07T09:41:42.000Z",
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                            "cweId": "CWE-625",
                            "description": "Permissive Regular Expression",
                            "lang": "en",
                            "type": "CWE"
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                    ]
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            ],
            "x_redhatCweChain": "CWE-625: Permissive Regular Expression",
            "workarounds": [
                {
                    "lang": "en",
                    "value": "Administrators should review and update their Auth Machine-to-Machine (M2M) role mappings in StackRox/RHACS Central to ensure that `valueExpression` regular expressions are properly anchored (e.g., by adding `^` and `$` delimiters). This ensures exact matching of claim values and prevents unintended role assignments. Reloading the configuration or restarting the Central service may be required for changes to take effect."
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            ],
            "timeline": [
                {
                    "lang": "en",
                    "time": "2026-08-07T09:41:42.000Z",
                    "value": "Reported to Red Hat."
                },
                {
                    "lang": "en",
                    "time": "2026-08-07T09:41:42.000Z",
                    "value": "Made public."
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Red Hat would like to thank Sergey (@r0binak) Kanibor (Luntry) for reporting this issue."
                }
            ],
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