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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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:fd1e02757e612afa53c90c2b0bb666d5e7583d1203b489bfcd61a4e6c7db27a2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"perl","product":"perl","repo":"https://github.com/Perl/perl5","vendor":"SHAY","versions":[{"lessThan":"5.40.4-RC1","status":"affected","version":"5.9.4","versionType":"custom"},{"lessThan":"5.42.2-RC1","status":"affected","version":"5.41.0","versionType":"custom"},{"lessThan":"5.43.9","status":"affected","version":"5.43.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c7673fd190b9777736528cceab5dee4a464c54a123e97e2afcf9fe848464876d · sha256:c7c38ae308bdfd9d… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c7673fd190b9777736528cceab5dee4a464c54a123e97e2afcf9fe848464876d · sha256:c7c38ae308bdfd9d… · /containers/adp/1/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-1395","description":"CWE-1395 Dependency on Vulnerable Third-Party Component","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c7673fd190b9777736528cceab5dee4a464c54a123e97e2afcf9fe848464876d · sha256:c7c38ae308bdfd9d… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-1395","description":"CWE-1395 Dependency on Vulnerable Third-Party Component","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c7673fd190b9777736528cceab5dee4a464c54a123e97e2afcf9fe848464876d · sha256:c7c38ae308bdfd9d… · /containers/adp/1/problemTypes/0/descriptions/0

Source references

7 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2026/03/30/2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c7673fd190b9777736528cceab5dee4a464c54a123e97e2afcf9fe848464876d · sha256:c7c38ae308bdfd9d… · /containers/adp/0/references/0
{"tags":["patch"],"url":"https://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c7673fd190b9777736528cceab5dee4a464c54a123e97e2afcf9fe848464876d · sha256:c7c38ae308bdfd9d… · /containers/cna/references/2
{"tags":["vendor-advisory"],"url":"https://lists.security.metacpan.org/cve-announce/msg/37638919/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c7673fd190b9777736528cceab5dee4a464c54a123e97e2afcf9fe848464876d · sha256:c7c38ae308bdfd9d… · /containers/cna/references/1
{"tags":["release-notes"],"url":"https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c7673fd190b9777736528cceab5dee4a464c54a123e97e2afcf9fe848464876d · sha256:c7c38ae308bdfd9d… · /containers/cna/references/3
{"tags":["release-notes"],"url":"https://metacpan.org/release/SHAY/perl-5.40.4/changes"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c7673fd190b9777736528cceab5dee4a464c54a123e97e2afcf9fe848464876d · sha256:c7c38ae308bdfd9d… · /containers/cna/references/4
{"tags":["release-notes"],"url":"https://metacpan.org/release/SHAY/perl-5.42.2/changes"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c7673fd190b9777736528cceab5dee4a464c54a123e97e2afcf9fe848464876d · sha256:c7c38ae308bdfd9d… · /containers/cna/references/5
{"tags":["vendor-advisory","related","vdb-entry"],"url":"https://www.cve.org/CVERecord?id=CVE-2026-3381"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c7673fd190b9777736528cceab5dee4a464c54a123e97e2afcf9fe848464876d · sha256:c7c38ae308bdfd9d… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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