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PCRE2 Library Versions Updated with Security Fixes

PCRE2 Library Versions Updated with Security Fixes

First seen 3 Nov 2026, 22:45 UTC •
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ThreatCluster AI
ThreatCluster •November 3, 2026 at 22:46 UTC
  • •Multiple PCRE2 library versions updated on November 3, 2026.
  • •Updates include runtime libraries for UTF-8, UTF-16, and UTF-32.
  • •No critical vulnerabilities or active exploitation reported.

On November 3, 2026, multiple versions of the PCRE2 library were released, addressing vulnerabilities across different builds. The updates include versions 10.46-1ubuntu0.1, 10.46-1ubuntu1, 10.39-3ubuntu0.2, and 10.42-4ubuntu2.2, which contain runtime libraries for various input formats including UTF-8, UTF-16, and UTF-32. These releases are part of an ongoing effort to enhance security and performance in the PCRE2 library, which is widely used for regular expression processing in software development. Users are encouraged to upgrade to the latest versions to mitigate potential risks associated with older versions. The updates do not specify any vulnerabilities or at this time.

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Timeline

2026-11-03
PCRE2 library versions released
Versions 10.46-1ubuntu0.1, 10.46-1ubuntu1, 10.39-3ubuntu0.2, and 10.42-4ubuntu2.2 were released to enhance security and performance.
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Common questions

Which versions of PCRE2 should I upgrade to?
Users should upgrade to the latest versions: 10.46-1ubuntu0.1 or 10.46-1ubuntu1.
Are there any known vulnerabilities in the previous versions?
The articles do not specify any critical vulnerabilities in the previous versions.
What is the impact of not upgrading?
While no critical vulnerabilities are reported, using outdated libraries may expose systems to potential risks.