CVE detail
CVE-2026-4176
Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Zlib. Compress::Raw::Zlib is included in the Perl package as a dual-life core module, and is vulnerable to CVE-2026-3381 due to a vendored version of zlib which has several vulnerabilities, including CVE-2026-27171. The bundled Compress::Raw::Zlib was updated to version 2.221 in Perl blead commit c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 22.0 · diversity 20.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
8 source links · newest first
Information published.
vendormsrc.microsoft.comApr 15, 2026, 8:41 AM- http://www.openwall.com/lists/oss-security/2026/03/30/2www.openwall.com
No excerpt available.
Exploitwww.openwall.comMar 29, 2026, 9:16 PM No excerpt available.
Third Party Advisorywww.cve.orgMar 29, 2026, 9:16 PMNo excerpt available.
Release Notesmetacpan.orgMar 29, 2026, 9:16 PMNo excerpt available.
Release Notesmetacpan.orgMar 29, 2026, 9:16 PMNo excerpt available.
Release Notesmetacpan.orgMar 29, 2026, 9:16 PM- https://lists.security.metacpan.org/cve-announce/msg/37638919/lists.security.metacpan.org
No excerpt available.
Third Party Advisorylists.security.metacpan.orgMar 29, 2026, 9:16 PM No excerpt available.
Exploitgithub.comMar 29, 2026, 9:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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