CVE-2026-28802 - Authlib: Setting `alg: none` and a blank signature appears to bypass signature v...

CVE ID : CVE-2026-28802 Published : March 6, 2026, 7:16 a.m. | 43 minutes ago Description : Authlib is a Python library which builds OAuth and OpenID Connect servers. From version 1.6.5 to before version 1.6.7, previous tests involving passing a malicious JWT containing alg: none and an empty signature was passing the signature verification step without any changes to the application code when a failure was expected.. This issue has been patched in version 1.6.7. Severity: 7.7 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...