What is CVE-2026-9538?

CVE-2026-9538 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header

Which CVE IDs does CVE-2026-9538 cover?

CVE-2026-9538 covers the following CVE IDs: CVE-2026-9538. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-9538?

CVE-2026-9538 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-9538?

CVE-2026-9538 affects 1 product, including: azl3 perl 5.38.2-509 on Azure Linux 3.0.

CVE-2026-9538HighCVSS 7.5

Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header

Vendor

Microsoft Security Response Center (MSRC)

Published

June 1, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-9538 →

🎯 Affected products1

azl3 perl 5.38.2-509 on Azure Linux 3.0

🔗 References (1)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-9538