SB2026012308 - Multiple vulnerabilities in Go implementation of The Update Framework (TUF)



SB2026012308 - Multiple vulnerabilities in Go implementation of The Update Framework (TUF)

Published: January 23, 2026

Security Bulletin ID SB2026012308
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Reachable assertion (CVE-ID: CVE-2026-23991)

CWE-ID: CWE-617 - Reachable Assertion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion within malformed server response. A remote attacker can cause a denial of service (DoS) attack.


2) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2026-23992)

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper validation of configured threshold for delegations. A remote attacker can cause unathorized modification to TUF metadata files.


Remediation

Install update from vendor's website.