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IO::Compress::Brotli before 0.023 has decoder out-of-bounds write

Original title: CVE-2026-115936: IO::Compress::Brotli versions from 0.004001 before 0.023 for Perl bundle a brotli library with an out-of-bounds write in the decoder

oss-security ()2 · 1 read
AI summary · x-ai/grok-4.7Summaries by Vani AI

Perl module versions from 0.004001 before 0.023 ship a brotli library whose decoder can write out of bounds (CVE-2026-115936).

Timothy Legge posted to oss-security on October 23 about CVE-2026-115936 in the Perl distribution IO::Compress::Brotli. Versions from 0.004001 before 0.023 bundle a brotli library with an out-of-bounds write in the decoder. The feed text stops after the MetaCPAN link, so exploitability and a named release are not shown.

Unconfirmed: The mailing-list body is truncated, so exploitation and the exact fix announcement are not shown.

Key facts
  • Affected range stated as 0.004001 before 0.023.
  • The flaw is an out-of-bounds write in the bundled brotli decoder.
  • The note was posted by Timothy Legge on October 23.
Security assessment · AI, from the article

Impact: Out-of-bounds write in the bundled brotli decoder

ProductAffectedFixed in
IO::Compress::Brotli0.004001 before 0.0230.023
What to do
  1. 1.Upgrade IO::Compress::Brotli to 0.023 or later.
Analyze CVE-2026-115936 with Vani AIImpact, affected versions, exploitation, mitigations and detection

Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2026-115936
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From the original article

Posted by Timothy Legge on Oct 23 ======================================================================== https://metacpan. org/dist/IO-Compress-Brotli VCS Repo:...

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.