CVE-2026-89157
highpriority · track · 30EPSS 0.003 · 28 %ileDEFRUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.7–7.4
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (9)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3334PCRE2 (Perl Compatible Regular Expressions): Mehrere SchwachstellenDeutsch2026-09-13csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in PCRE2 (Perl Compatible Regular Expressions) ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Speicher zu beschädigen, Informationen offenzulegen oder Denial-of-Service-Zustände herbeizuführen.
- CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
sources
Which sources assert this record, and when.
references (2) nvd
External citations — patches, advisories, analysis.
- https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48Release Notes
- https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-q8g2-wprr-34m9ExploitMitigationVendor Advisory
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan