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        "state": "PUBLISHED",
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        "dateReserved": "2026-01-14T21:55:01.348Z",
        "datePublished": "2026-03-26T20:06:30.707Z",
        "dateUpdated": "2026-09-01T12:10:17.319Z"
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                        "attackVector": "LOCAL",
                        "availabilityImpact": "LOW",
                        "baseScore": 2.2,
                        "baseSeverity": "LOW",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
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                    "value": "A flaw was found in libssh. A remote attacker, by controlling client configuration files or known_hosts files, could craft specific hostnames that when processed by the `match_pattern()` function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion, resulting in a Denial of Service (DoS) for the client."
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                    "product": "Red Hat OpenShift Container Platform 4",
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            "references": [
                {
                    "url": "https://access.redhat.com/errata/RHSA-2026:18160",
                    "name": "RHSA-2026:18160",
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                        "x_refsource_REDHAT"
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                    "url": "https://access.redhat.com/errata/RHSA-2026:18683",
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                    "url": "https://www.libssh.org/2026/02/10/libssh-0-12-0-and-0-11-4-security-releases/"
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            "datePublic": "2026-02-10T18:47:09.215Z",
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                            "cweId": "CWE-1333",
                            "description": "Inefficient Regular Expression Complexity",
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                            "type": "CWE"
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                    "lang": "en",
                    "value": "Avoid using complex patterns in configuration files and known_hosts."
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            "timeline": [
                {
                    "lang": "en",
                    "time": "2026-02-04T23:43:23.869Z",
                    "value": "Reported to Red Hat."
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                    "lang": "en",
                    "time": "2026-02-10T18:47:09.215Z",
                    "value": "Made public."
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            "credits": [
                {
                    "lang": "en",
                    "value": "Red Hat would like to thank Jakub Jelen (libssh) and Kang Yang for reporting this issue."
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