What’s Vulnerable › Vulnerabilities

CVE-2024-33531

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-24 · updated 2026-06-17
• Weakness: CWE-290

Description

cdbattags lua-resty-jwt 0.2.3 allows attackers to bypass all JWT-parsing signature checks by crafting a JWT with an enc header with the value A256GCM.

Affected products

• Cdbattags Lua Resty Jwt: 0.2.3

References

• https://github.com/cdbattags/lua-resty-jwt/commit/d1558e2afefe868fea1e7e9a4b04ea94ab678a85
• https://github.com/cdbattags/lua-resty-jwt/issues/61
• https://insinuator.net/2023/10/lua-resty-jwt-authentication-bypass/
• https://github.com/cdbattags/lua-resty-jwt/commit/d1558e2afefe868fea1e7e9a4b04ea94ab678a85
• https://github.com/cdbattags/lua-resty-jwt/issues/61
• https://insinuator.net/2023/10/lua-resty-jwt-authentication-bypass/

Get alerted when CVE-2024-33531 or the next vulnerability affects your stack