MEDIUM 4.2 Microsoft
CVE-2026-48522
PyJWKClient: missing scheme allowlist enables SSRF + token forgery via file://, ftp://, data: schemes
Microsoft Security Update 2026-May: PyJWKClient: missing scheme allowlist enables SSRF + token forgery via file://, ftp://, data: schemes
Affected Products
- azl3 python-jwt 2.8.0-2 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48522
- https://nvd.nist.gov/vuln/detail/CVE-2026-48522
This medium severity vulnerability with a CVSS score of 4.2 was published on 2026-05-12 via Microsoft. Affected: azl3 python-jwt 2.8.0-2 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.