CVE-2026-3381

Name: CVE-2026-3381
Creator: NVD / NIST
Published: 2026-03-05T02:16:52.267+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.55%

Last modified Jun 17, 2026

CVE-2026-3381 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 0.55% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.55%

41.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1284

Affected Software

Vendor	Product	Versions	Update
Pmqs	Compress\	<= 2.219	Raw\

References

https://7asecurity.com/blog/2026/02/zlib-7asecurity-audit/Third Party Advisory
https://github.com/madler/zlibProduct
https://github.com/madler/zlib/releases/tag/v1.3.2Release Notes
https://github.com/pmqs/Compress-Raw-Zlib/issues/41Issue Tracking
https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/ChangesProduct, Release Notes
https://www.cve.org/CVERecord?id=CVE-2026-27171Third Party Advisory
https://www.zlib.net/Product

Timeline

Published: Mar 5, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-3381?

How severe is CVE-2026-3381?

CVE-2026-3381 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.

How do I fix CVE-2026-3381?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3381?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST