{"id":"CVE-2026-89157","title":"PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.","summary":"PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.","severity":"medium","cvss":5.7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L","cwe":["CWE-190","CWE-787"],"vendor":"pcre","product":"pcre2","affected":["pcre2 >= 10.30, < 10.48","pcre2 = 10.48"],"patched":["pcre2 10.48"],"published":"2026-09-11","updated":"2026-09-16","sourceUpdated":"2026-09-16T19:25:08.880","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89157","references":[{"url":"https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48","label":"cve@mitre.org"},{"url":"https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-q8g2-wprr-34m9","label":"cve@mitre.org"},{"url":"https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-q8g2-wprr-34m9","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89157.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89157"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2531744"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89157"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89157"},{"url":"https://access.redhat.com/errata/RHSA-2026:67534"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat"],"epss":0.00214,"epssPercentile":0.1198,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-11T16:02:20.626216Z"},"ingestedAt":"2026-09-11T16:45:47.859Z","slug":"CVE-2026-89157","body":"## Overview\n\nPCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.\n\n## Affected\n\n- `pcre2 >= 10.30, < 10.48`\n- `pcre2 = 10.48`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `pcre2 10.48`\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89157.json)\n- **RHSA-2026:67534** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-09-15 · [advisory](https://access.redhat.com/errata/RHSA-2026:67534)","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":31.4,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[]}