Vulnerability/
REDHAT-BUG-2531743

REDHAT-BUG-2531743: Low severity PCRE2 PCRE2 vulnerability

Q: What input is required to trigger the issue?

An attacker must be able to provide invalid UTF data to a PCRE2 match operation. The out-of-bounds read occurs after a JIT fallback.

Q: Which versions are affected?

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

Published Sep 11, 2026

Updated

PCRE2 before 10.48 has a pcre2match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.

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 input is required to trigger the issue?

An attacker must be able to provide invalid UTF data to a PCRE2 match operation. The out-of-bounds read occurs after a JIT fallback.

Which versions are affected?

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

Company

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Contact

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