CVE-2026-79575

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-08 · updated 2026-09-09
Weakness: CWE-330

Description

The JWT signing secret in yfexam-exam v2.0 is derived from the username and the current month instead of a random server-side key, making the secret key easily obtainable via a bruteforce attack.

References

https://github.com/fangtang7/CVE/blob/main/yf-exam/JWT.md
https://github.com/fangtang7/CVE/blob/main/yf-exam/JWT.md

Get alerted when CVE-2026-79575 or the next vulnerability affects your stack