VulnerabilityAnalyzed
CVE-2026-3381
Compress::Raw::Zlib versions through 2.219 for Perl use potentially insecure versions of zlib.
CRITICAL 9.8EPSS 0.55%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.55% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1284
- Affected
- pmqs/compress\
- Source
- 9b29abf9-4ab0-4765-b253-1875cd9b441e
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.