CVE-2026-23992
Improper validattion of configured threshold for delegations in github.com/theupdateframework/go-tuf
Description
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.
How to fix CVE-2026-23992
To remediate CVE-2026-23992, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 2.3.1 or later
- —upgrade to 2.3.1 or later
Is CVE-2026-23992 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0
- from 0, < 2.3.1
- from 0, < 2.3.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |