CVE-2026-103111

PCRE2 before 10.49, when there is an attacker-controlled regular expression and certain JIT API usage, allows an out-of-bounds write with arbitrary data.

  • Published Sep 30, 2026
  • CVSS 7.6 high
  • 0.2% chance of exploitation in the next 30 days (EPSS)
  • A fix is available

Affected software

CVE-2026-103111 at the National Vulnerability Database