CVE-2026-89157
highPCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.
Vendor / product: Pcre — pcre2
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.
CVSS
7.4
7.4 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-09-11 04:18
Modified: 2026-09-16 19:25
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 06:52 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
pcre / pcre2 ≥10.30 <10.48, 10.48
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-q8g2-wprr-34m9
Patch / mitigation: https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-q8g2-wprr-34m9
References
- https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48 cve@mitre.org
- https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-q8g2-wprr-34m9 cve@mitre.org
- https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-q8g2-wprr-34m9 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗