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CVE-2024-56138

14
FAUCET Score

CVE-2024-56138 is a vulnerability in notation-go, a library for signing and verifying OCI artifacts, where the revocation status of certificates used in timestamp signature generation was not checked. This oversight allows an attacker to use a revoked certificate to generate malicious countersignatures, potentially leading to denial of service, especially in CI/CD environments. With a CVSS score of 4.0 (MEDIUM), the vulnerability has a local attack vector and low complexity, primarily impacting availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
NotaryprojectNotation-Go
< 1.3.0-rc.2CNA affected

CVSS Data

CVSS version used by this source: 3.1

4.0MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.5
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.13%
Probability of exploitation in next 30 days
EPSS Percentile
3.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0013 is in the 7th percentile among its peer group of 3,050 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

gopatch availablevia ghsa
Product: github.com/notaryproject/notation-goFixed in: 1.3.0-rc.2

Vendor Advisories (1)

goGHSA-45v3-38pc-874vmedium

notation-go's timestamp signature generation lacks certificate revocation check

Jan 13, 2025

References

github.com / notaryproject/notation-go/commit/e7005a6d13e5ba472d4e166fbb085152f909e102
github.com / notaryproject/notation-go/security/advisories/GHSA-45v3-38pc-874v