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CVE-2023-33958

20
FAUCET Score

CVE-2023-33958 is a denial-of-service vulnerability affecting the notation CLI tool, used for signing and verifying OCI artifacts and container images, specifically impacting notaryproject notation-go. An attacker who compromises a registry can overload an artifact with numerous signatures, leading to a denial of service on a machine when a user executes the 'notation verify' command. This vulnerability has a CVSS score of 6.5 (Medium), indicating a network-based attack with low complexity, requiring user interaction, and resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.0CPE matchmatch criteria
cpe:2.3:a:notaryproject:notation-go:*:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:notaryproject:notation-go:1.0.0:rc1:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:notaryproject:notation-go:1.0.0:rc2:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:notaryproject:notation-go:1.0.0:rc3:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:notaryproject:notation-go:1.0.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.48%
Probability of exploitation in next 30 days
EPSS Percentile
39.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0049 is in the 41st percentile among its peer group of 26,221 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

gopatch availablevia ghsa
Product: github.com/notaryproject/notationFixed in: 1.0.0-rc.6
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

goGHSA-rvrx-rrwh-r9p6medium

Notation's default `maxSignatureAttempts` in `notation verify` enables an endless data attack

Jun 6, 2023

References

github.com / notaryproject/notation/releases/tag/v1.0.0-rc.6
Release Notes
github.com / notaryproject/notation/security/advisories/GHSA-rvrx-rrwh-r9p6
Vendor Advisory