Vulnerability/
REDHAT-BUG-2531747

REDHAT-BUG-2531747: High severity PCRE2 PCRE2 vulnerability

Q: What conditions are required for this issue to occur?

The issue involves pcre2_jit_match when a previously copied subject is passed in as a context. The described impact is an incorrect free operation.

Q: Which PCRE2 versions are affected?

PCRE2 versions before 10.48 are affected according to the available information.

Q: How can I obtain the vendor-provided remediation?

Red Hat has published fixes in the referenced RHSA-2026:81522, RHSA-2026:81532, and RHSA-2026:82845 advisories.

Published Sep 11, 2026

Updated

In PCRE2 before 10.48, pcre2jitmatch mishandles a previously copied subject being passed in as a context. An incorrect free operation can occur.

Affected Software

1 affected component

PCRE2 PCRE2<10.48

Event History

Sep 11, 2026

Data Sourced

via Red Hat·04:21 AM

DescriptionSeverityAffected Software

Frequently Asked Questions

What conditions are required for this issue to occur?

The issue involves pcre2_jit_match when a previously copied subject is passed in as a context. The described impact is an incorrect free operation.

Which PCRE2 versions are affected?

PCRE2 versions before 10.48 are affected according to the available information.

How can I obtain the vendor-provided remediation?

Red Hat has published fixes in the referenced RHSA-2026:81522, RHSA-2026:81532, and RHSA-2026:82845 advisories.

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