In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.

🔗 CVE IDs covered (1)

🎯 Affected products1

• azl3 libxml2 2.11.5-10 on Azure Linux 3.0

✅ Remediation

Security Update

🔗 References (2)

• advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-86140
• patchhttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade