CVE-2026-6966

medium

Published 2026-04-24 · Modified 2026-05-05

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CVSS v3

6.5

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

CVSS v4 NEW

7.0

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

VIR risk

6.5

Description

awslabs/tough Delegated Roles have a Signature Threshold Bypass

Predictions

Exploit likelihood

75%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
crates.io	tough	`<0.22.0`	`0.22.0`
crates.io	tuftool	`<0.15.0`	`0.15.0`
RUST	tuftool	`< 0.15.0`	`0.15.0`
RUST	tough	`< 0.22.0`	`0.22.0`

Application impact

Vendor	Product	Versions	Fixed
amazon	tough	`{"endExcluding":"0.22.0"}`	`0.22.0`
amazon	tuftool	`{"endExcluding":"0.15.0"}`	`0.15.0`
aws	aws

References

CWEs

CWE-347

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.