CVE-2026-4176
critical · 9.8Perl 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.
9.8
CVSS
0.7%
EPSS (exploit prob.)
53rd
EPSS percentile
2026-03-29
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| perl | perl | >= 5.9.4, < 5.40.4 |
| perl | perl | >= 5.41.0, < 5.42.2 |
| perl | perl | >= 5.43.0, < 5.43.9 |
Check a specific version with /api/v1/cve/match.
References
- https://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94
- https://lists.security.metacpan.org/cve-announce/msg/37638919/
- https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes
- https://metacpan.org/release/SHAY/perl-5.40.4/changes
- https://metacpan.org/release/SHAY/perl-5.42.2/changes
- https://www.cve.org/CVERecord?id=CVE-2026-3381
- http://www.openwall.com/lists/oss-security/2026/03/30/2
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-4176