Is CVE-2026-6967 in the CISA KEV catalog?

No. CVE-2026-6967 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-6967?

CVE-2026-6967 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2026-6967?

CVE-2026-6967 has an EPSS score of 0.25% (16th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-6967?

Upgrade tough to 0.22.0 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2026-6967

MEDIUM

5.9

CVSS v3

NVD

Description

Missing expiration, hash, and length enforcement in delegated metadata validation in awslabs/tough before tough-v0.22.0 allows remote authenticated users with delegated signing authority to bypass TUF specification integrity checks for delegated targets metadata and poison the local metadata cache, because load_delegations does not apply the same validation checks as the top-level targets metadata path. We recommend you upgrade to tough-v0.22.0 / tuftool-v0.15.0.

CWE-345

How to fix

Remediation Available

toughNVD

Affected:>= 0.9.0, < 0.22.0Fixed in:0.22.0CVE-2026-6967derived from NVD

tuftoolNVD

Affected:< 0.15.0Fixed in:0.15.0CVE-2026-6967derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityLow

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

Exploit Intelligence

0.25%probability of exploitation in 30 days

16thpercentile

Low risk: more likely to be exploited than 16% of all known CVEs.

References

Vendor Advisory2

Release Notes2

Product2

Related Vulnerabilities

Other CWE-345 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-38831	High	7.8	98%	KEV + Ransom	Fix
CVE-2016-4553	High	8.6	80%	-	Fix
CVE-2016-4554	High	8.6	39%	-	Fix
CVE-2023-35719	Medium	6.8	26%	-	-
CVE-2022-26871	Critical	9.8	20%	KEV	-
CVE-2014-4936	High	9.3	17%	-	-

Embed a live status badge for CVE-2026-6967

Markdown

[![CVE-2026-6967](https://tridentstack.com/cve/badge/CVE-2026-6967.svg)](https://tridentstack.com/cve/CVE-2026-6967)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-6967"><img src="https://tridentstack.com/cve/badge/CVE-2026-6967.svg" alt="CVE-2026-6967"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.