Version 10.49 28-September-2026
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This is a security-only release, to address GHSA-r9hj-j2rw-4q3m.

Compared to 10.48, this release has only a minimal code change to prevent an
out-of-bounds write with arbitrary data. An attacker-controlled regex pattern
is required, and applications are only affected if using the
pcre2_jit_stack_create() and pcre2_jit_stack_assign() APIs to provide a growable
JIT stack, and then matching against a pattern with unusually high JIT stack
usage, such as a large number of capturing groups.

The implications of an out-of-bounds write could include arbitrary code
execution.

The issue is not a regression and affects releases 10.48 and earlier.