🚨 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 recursive DFA matching workspace, lacks a size check (even though a newly allocated block, for the same purpose, does have a size check). This outcome requires an attacker-controlled regular expression, or a recursive pattern in conjunction with a small heap limit (this can be set through the API).
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GitHub
Release PCRE2 10.48 · PCRE2Project/pcre2
This is a regular release, incorporating security fixes along with fixes and small improvements to library behaviour.
This release is available as before as a (signed) Git tag, or alternatively as ...
September 5, 2026 22
