Red Hat Security Advisory: pcre2 security update

Fixed packages 12

Vulnerabilities 3

• High 8.2
  CVE-2026-86145

  PCRE2 before 10.48 allows a pcre2_dfa_match out-of-bounds write because reuse of a cached workspace block, in a recursi…

  PCRE PCRE2 pcre2 pcre2 Debian Ubuntu Azure Linux Alpine
  Sep 5, 2026
• High 7.6
  CVE-2026-103111

  PCRE2 before 10.49, when there is an attacker-controlled regular expression and certain JIT API usage, allows an out-of…

  PCRE PCRE2 rust php Debian Ubuntu Azure Linux Alpine
  Sep 30, 2026
• High 7.4
  CVE-2026-89161

  In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context. An incorrec…

  PCRE PCRE2 rust php Debian Ubuntu Azure Linux Alpine
  Sep 11, 2026

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2528993
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2531747
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2543797
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_86205.json
• report
  https://access.redhat.com/security/cve/CVE-2026-86145
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-86145
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-86145
• article
  https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48
• article
  https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-3r4p-g7gg-ppmf
• report
  https://access.redhat.com/security/cve/CVE-2026-89161
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-89161
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-89161
• article
  https://github.com/PCRE2Project/pcre2/pull/937
• report
  https://access.redhat.com/security/cve/CVE-2026-103111
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-103111
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-103111
• article
  https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-r9hj-j2rw-4q3m