VDB-342279 · CVE-2026-23992 · GHSA-fphv-w9fq-2525

theupdateframework go-tuf up to 2.3.0 signature verification

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5.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in theupdateframework go-tuf up to 2.3.0. It has been rated as problematic. This vulnerability affects unknown code. Performing a manipulation results in signature verification. This vulnerability is cataloged as CVE-2026-23992. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in theupdateframework go-tuf up to 2.3.0. This affects an unknown function. The manipulation with an unknown input leads to a signature verification vulnerability. CWE is classifying the issue as CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. This is going to have an impact on integrity. The summary by CVE is:

go-tuf is a Go implementation of The Update Framework (TUF). Starting in version 2.0.0 and prior to version 2.3.1, a compromised or misconfigured TUF repository can have the configured value of signature thresholds set to 0, which effectively disables signature verification. This can lead to unauthorized modification to TUF metadata files is possible at rest, or during transit as no integrity checks are made. Version 2.3.1 fixes the issue. As a workaround, always make sure that the TUF metadata roles are configured with a threshold of at least 1.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-23992 since 01/19/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 296222 (Linux Distros Unpatched Vulnerability : CVE-2026-23992), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.3.1 eliminates this vulnerability. Applying the patch b38d91fdbc69dfe31fe9230d97dafe527ea854a0 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (296222). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

theupdateframework

Name

go-tuf

Version

License

open-source

Website

Product: https://github.com/theupdateframework/go-tuf/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 5.9
CNA Vector (GitHub_M): 🔒

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 296222
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-23992

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: go-tuf 2.3.1
Patch: b38d91fdbc69dfe31fe9230d97dafe527ea854a0

Timelineinfo

01/19/2026 CVE reserved
01/22/2026 +3 days Advisory disclosed
01/22/2026 +0 days VulDB entry created
02/17/2026 +26 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-fphv-w9fq-2525
Status: Confirmed

CVE: CVE-2026-23992 (🔒)
GCVE (CVE): GCVE-0-2026-23992
GCVE (VulDB): GCVE-100-342279

Entryinfo

Created: 01/22/2026 07:55
Updated: 02/17/2026 20:09
Changes: 01/22/2026 07:55 (65), 01/23/2026 14:26 (2), 02/17/2026 20:09 (11)
Complete: 🔍
Cache ID: 216::103