Perl versions from 5.9.4 before 5.41.9 produce incorrect regular expression match results when a stale failure flag ends the Aho-Corasick prescan early in S_find_byclass

🔗 CVE IDs covered (1)

🎯 Affected products2

• azl3 perl 5.38.2-514 on Azure Linux 3.0
• azl3 perl 5.38.2-516 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 5.38.2-516 Security Update — fixed build 5.38.2-516

🔗 References (2)

• advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-19487
• referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade