CVE-2026-3381

EUVD-2026-9520
Compress::Raw::Zlib versions through 2.219 for Perl use potentially insecure versions of zlib.

Compress::Raw::Zlib includes a copy of the zlib library. Compress::Raw::Zlib version 2.220 includes zlib 1.3.2, which addresses findings fron the 7ASecurity audit of zlib. The includes fixs for CVE-2026-27171.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Debian logo
Debian Releases
Debian Product
Codename
libcompress-raw-zlib-perl
bookworm
2.204-1
fixed
bullseye
2.101-1
fixed
forky
2.221-1
fixed
sid
2.221-1
fixed
trixie
2.213-1
fixed
perl
bookworm
5.36.0-7+deb12u3
fixed
bookworm (security)
5.36.0-7+deb12u2
fixed
bullseye
5.32.1-4+deb11u3
fixed
bullseye (security)
5.32.1-4+deb11u4
fixed
forky
5.40.1-7
fixed
sid
5.40.1-7
fixed
trixie
5.40.1-6
fixed
References
https://7asecurity.com/blog/2026/02/zlib-7asecurity-audit/
https://github.com/madler/zlib
https://github.com/madler/zlib/releases/tag/v1.3.2
https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes
https://www.cve.org/CVERecord?id=CVE-2026-27171
https://www.zlib.net/