MEDIUM 4.7 Microsoft
CVE-2026-44899
Mistune Image Directive CSS Injection Vulnerability
Microsoft Security Update 2026-May: Mistune Image Directive CSS Injection Vulnerability
Affected Products
- azl3 python-mistune 3.0.2-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44899
- https://nvd.nist.gov/vuln/detail/CVE-2026-44899
This medium severity vulnerability with a CVSS score of 4.7 was published on 2026-05-12 via Microsoft. Affected: azl3 python-mistune 3.0.2-1 on Azure Linux 3.0.
vulnfeed aggregates 9214 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.