Mend.io Vulnerability Database

What is a CVE vulnerability ID? icon What is a WS vulnerability ID? icon What is an MSC vulnerability ID? icon
New vulnerability? Tell us about it!
icon

We found results for “”

CVE-2026-23991

Good to know:

icon
icon

Date: January 21, 2026

go-tuf is a Go implementation of The Update Framework (TUF). Starting in version 2.0.0 and prior to version 2.3.1, if the TUF repository (or any of its mirrors) returns invalid TUF metadata JSON (valid JSON but not well formed TUF metadata), the client will panic during parsing, causing a denial of service. The panic happens before any signature is validated. This means that a compromised repository/mirror/cache can DoS clients without having access to any signing key. Version 2.3.1 fixes the issue. No known workarounds are available.

Severity Score

Related Resources (6)

https://github.com/theupdateframework/go-tuf
https://github.com/theupdateframework/go-tuf/security/advisories/GHSA-846p-jg2w-w324
https://github.com/theupdateframework/go-tuf/releases/tag/v2.3.1
https://github.com/theupdateframework/go-tuf/commit/73345ab6b0eb7e59d525dac17a428f043074cef6
https://nvd.nist.gov/vuln/detail/CVE-2026-23991
https://www.mend.io/vulnerability-database/CVE-2026-23991

Severity Score

Weakness Type (CWE)

Improper Check for Unusual or Exceptional Conditions

CWE-754

Reachable Assertion

CWE-617

Top Fix

icon

Upgrade Version

Upgrade to version github.com/theupdateframework/go-tuf/v2 - v2.3.1;https://github.com/theupdateframework/go-tuf.git - v2.3.1;https://github.com/theupdateframework/go-tuf.git - v2.3.1

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

Do you need more information?

Contact Us