CVE-2026-4176

Perl 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.

• https://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94Patch
• https://lists.security.metacpan.org/cve-announce/msg/37638919/Third Party Advisory
• https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/ChangesRelease Notes
• https://metacpan.org/release/SHAY/perl-5.40.4/changesRelease Notes
• https://metacpan.org/release/SHAY/perl-5.42.2/changesRelease Notes
• https://www.cve.org/CVERecord?id=CVE-2026-3381Third Party Advisory
• http://www.openwall.com/lists/oss-security/2026/03/30/2Mailing List, Third Party Advisory

Published

Mar 29, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-4173A flaw has been found in CodePhiliaX Chat2DB up to 0.3.7. Th…6.3
• CVE-2026-41730Spring Data REST serializes the full exception cause chain i…5.3
• CVE-2026-41731JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderM…8.1
• CVE-2026-41732JsonPulsarHeaderMapper matched type headers against trusted …8.1
• CVE-2026-4174A vulnerability has been found in Radare2 5.9.9. This issue …3.3
• CVE-2026-4175A vulnerability was determined in Aureus ERP up to 1.3.0-BET…5.1
• CVE-2026-4177YAML::Syck versions through 1.36 for Perl has several potent…9.1
• CVE-2026-4178Rejected reason: This CVE ID has been rejected or withdrawn …
• CVE-2026-4179Issues in stm32 USB device driver (drivers/usb/device/usb_dc…6.1
• CVE-2026-4180A vulnerability was identified in D-Link DIR-816 1.10CNB05. …9.8
• CVE-2026-4181A security flaw has been discovered in D-Link DIR-816 1.10CN…9.8
• CVE-2026-4182A weakness has been identified in D-Link DIR-816 1.10CNB05. …9.8