CVE-2026-3381

Compress::Raw::Zlib versions through 2.219 for Perl use potentially insecure versions of zlib

CVE-2026-3381 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-3381, released March 5, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent

CVSS

9.8

Critical

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0062

50th percentile

zlib 1.3.2: Add "Perl_crz" prefix to "z_errmsg". Fixes #32 * Fix spelling typo 2.219 23 February 2026 * Update to version 2.219 * zlib 1.3.2: Add a few casts to allow zlib sources to build with C++ * Test workflows with upstream zlib 1.32 * zlib 1.3.2: Add "Perl_crz_" prefix to exported symbols * zlib-1.3.2: Force include of <stddef.h> to get definition for NULL * Refresh zlib-src directory with unmodified zlib-1.3.2 files

Where it's fixed

Product	Fixed in	Fix	Released
Linux
libcompress-raw-zlib-perl · Debian 12.15 (bookworm)	2.011-2	DEBIAN-CVE-2026-3381	Mar 5, 2026
libcompress-raw-zlib-perl · Debian 13.5 (trixie)	2.011-2	DEBIAN-CVE-2026-3381	Mar 5, 2026
libcompress-raw-zlib-perl · Debian 14	2.011-2	DEBIAN-CVE-2026-3381	Mar 5, 2026
perl-Compress-Raw-Zlib · opensuse-leap 16.0	2.222-bp160.1.1	OPENSUSE-SU-2026:21142-1	Jun 19, 2026

Details

Published
March 5, 2026
Weakness
Dependency on Vulnerable Third-Party Component
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3381

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