PatchSiren cyber security CVE debrief

CVE-2026-52754 nationalsecurityagency CVE debrief

CVE-2026-52754 is a HIGH-severity vulnerability in Ghidra, a software reverse engineering (SRE) framework developed by the National Security Agency (NSA). The vulnerability exists in the `PKIAuthenticationModule.authenticate()` method, which fails to properly validate certificates with null signatures. This allows an attacker with a valid CA-signed certificate to impersonate any other user, potentially leading to privilege escalation, unauthorized access to sensitive data, and compromise of server integrity.

Vendor: nationalsecurityagency
Product: ghidra
CVSS: HIGH 8.7
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-06-10
Original CVE updated: 2026-07-14
Advisory published: 2026-06-10
Advisory updated: 2026-07-14

Who should care

Users of Ghidra versions prior to 12.1 should be aware of this vulnerability and take immediate action to patch their installations. This includes administrators, developers, and security teams responsible for managing and securing software development and reverse engineering tools.

Technical summary

The vulnerability is caused by inadequate validation of certificate signatures in the `PKIAuthenticationModule.authenticate()` method. Specifically, the method fails to reject certificates with null signatures, allowing attackers to bypass authentication and impersonate legitimate users. The vulnerability has a CVSS score of 8.7, indicating a HIGH level of severity.

Defensive priority

High

Recommended defensive actions

Upgrade to Ghidra version 12.1 or later to patch the vulnerability.
Review and restrict access to sensitive Ghidra features and data.
Monitor Ghidra installations for suspicious activity.

Evidence notes

The CVE record and associated metadata provide evidence of the vulnerability's existence and impact. The vendor, NSA, has released patches for the vulnerability, which are available on GitHub.

Sources and references

Verified primary and authoritative sources

CVE-2026-52754 CVE Program record
Publisher, destination, and source semantics verified

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

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-52754 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-52754

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Mitigation or vendor reference
Unverified legacy reference

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

[email protected] - Patch
Mitigation or vendor reference
Unverified legacy reference

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

[email protected] - Patch
Mitigation or vendor reference
Unverified legacy reference

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

[email protected] - Vendor Advisory
Mitigation or vendor reference
Unverified legacy reference

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

[email protected] - Third Party Advisory

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.