SB2026012308 - Multiple vulnerabilities in Go implementation of The Update Framework (TUF)
Published: January 23, 2026
Breakdown by Severity
- 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.