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Δ / VULNERABILITY RECORD

CVE-2026-4176.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSCRITICAL / 9.8No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Apr 14, 2026

Disclosure summary

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

Source-reported weakness categories

CWE-1395

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2026-Mar

Open original source · Updated Apr 14, 2026

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

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 9.8

VendorProduct / associationVersion / bounds
Microsoft update guidecbl2 boost 1.76.0-4 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 ceph 16.2.10-11 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 cloud-hypervisor 32.0-7 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 cloud-hypervisor-cvm 38.0.72.2-5 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 binutils 2.41-10 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 erlang 25.3.2.21-5 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 boost 1.83.0-2 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 freetype 2.13.1-2 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 cloud-hypervisor 48.0.246-4 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 cmake 3.30.3-13 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 erlang 26.2.5.18-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 freetype 2.13.2-2 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 gdb 13.2-6 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 keras 2.11.0-3 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 libgit2 1.6.5-1 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 nmap 7.93-4 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 nodejs18 18.20.3-12 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 kata-containers 3.19.1.kata2-7 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 libgit2 1.7.2-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 python-tensorflow-estimator 2.11.0-2 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 nodejs24 24.13.0-3 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 rsync 3.4.1-2 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 rubygem-mini_portile2 2.8.0-1 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 rust 1.72.0-15 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 tcl 8.6.13-3 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 qtbase 6.6.3-4 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 rsync 3.4.1-2 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 rubygem-mini_portile2 2.8.4-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 rust 1.75.0-27 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 zlib 1.2.13-2 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 rust 1.90.0-6 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 tcl 8.6.13-3 on Azure Linux 3.0 (MSRC status code 3)

Original records & references

PUBLISHED 2026-03-31T21:15:30-04:00
MODIFIED 2026-04-14T21:41:11-04:00
INGESTED 2026-10-08T12:45:09-04:00