CVE-2026-52754

HIGH8.8

Ghidra < 12.1 - Authentication Bypass via Null Signature in PKIAuthenticationModule

Published Jun 10, 2026

Modified 2 weeks ago

Details

Ghidra before 12.1 contains an authentication bypass vulnerability in PKIAuthenticationModule.authenticate() that allows any user with a valid CA-signed certificate to impersonate other users by presenting their public certificate with a null signature. Attackers can escalate privileges, modify repository access controls, exfiltrate shared reverse engineering databases, and permanently compromise server integrity.

References

FIX

https://github.com/NationalSecurityAgency/ghidra/commit/78729379e471bbb3d969409be6a8c3d24af84220

FIX

https://github.com/NationalSecurityAgency/ghidra/commit/79d8f164f8bb8b15cfb60c5d4faeb8e1c25d15ca

ADVISORY

https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-5wxq-7qpv-65p2

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-52754

ADVISORY

https://www.vulncheck.com/advisories/ghidra-authentication-bypass-via-null-signature-in-pkiauthenticationmodule

CVSS Analysis