CVE-2026-33753 Improper Certificate Validation in rfc3161-client

rfc3161-client is a Python library implementing the Time-Stamp Protocol TSP described in RFC 3161. Prior to 1.0.6, an Authorization Bypass vulnerability in rfc3161-client's signature verification allows any attacker to impersonate a trusted TimeStamping Authority TSA. By exploiting a logic flaw i...

PT-2026-31325

Name of the Vulnerable Software and Affected Versions rfc3161-client versions prior to 1.0.6 Description An authorization bypass issue exists in rfc3161-client's signature verification. An attacker can impersonate a trusted TimeStamping Authority TSA by exploiting a flaw in how the library extrac...