What is GHSA-fg26-fr9r-9hrq?

GHSA-fg26-fr9r-9hrq is a security advisory published by GitHub Security Advisories with High severity. FreeRDP before 3.32.2 contains a double free in the WinPR Kerberos SSPI retrieveSomeTgt function,...

Which CVE IDs does GHSA-fg26-fr9r-9hrq cover?

GHSA-fg26-fr9r-9hrq covers the following CVE IDs: CVE-2026-121956. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-fg26-fr9r-9hrq?

GHSA-fg26-fr9r-9hrq has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-fg26-fr9r-9hrqHighCVSS 7.5

FreeRDP before 3.32.2 contains a double free in the WinPR Kerberos SSPI retrieveSomeTgt function,...

Vendor

GitHub Security Advisories

Published

November 4, 2026

Last Modified

November 4, 2026

🔗 CVE IDs covered (1)

CVE-2026-121956 →

📋 Description

FreeRDP before 3.32.2 contains a double free in the WinPR Kerberos SSPI retrieveSomeTgt function, which installs the krb5 default realm into a target principal that has an empty realm without taking ownership of it. Unauthenticated remote clients can send a crafted NLA/CredSSP u2u TGT request whose server-name component contains '@' to corrupt the heap and crash the server process.

🔗 References (4)

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2557-79qc-6gfr
https://nvd.nist.gov/vuln/detail/CVE-2026-121956
https://www.vulncheck.com/advisories/freerdp-before-3.32.2-double-free-in-winpr-kerberos-retrievesometgt
https://github.com/advisories/GHSA-fg26-fr9r-9hrq