8.8

CVE-2026-52754

Ghidra < 12.1 - Authentication Bypass via Null Signature in PKIAuthenticationModule

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Nsa ≫ Ghidra Version < 12.1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.162
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
disclosure@vulncheck.com 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
disclosure@vulncheck.com 8.7 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-347 Improper Verification of Cryptographic Signature

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-5wxq-7qpv-65p2
Vendor Advisory
https://github.com/NationalSecurityAgency/ghidra/commit/78729379e471bbb3d969409be6a8c3d24af84220
Patch
https://github.com/NationalSecurityAgency/ghidra/commit/79d8f164f8bb8b15cfb60c5d4faeb8e1c25d15ca
Patch
https://www.vulncheck.com/advisories/ghidra-authentication-bypass-via-null-signature-in-pkiauthenticationmodule
Third Party Advisory