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CVE-2023-33957

19
FAUCET Score

CVE-2023-33957 is a denial-of-service vulnerability affecting the notation CLI tool and notaryproject notation-go, used for signing and verifying OCI artifacts. An attacker can exploit this by compromising a registry and adding an excessive number of signatures to an artifact, leading to a DoS when a user runs the 'notation inspect' command. Rated Medium (CVSS 5.7), it requires user interaction (UI:R) and authenticated access (PR:L) to the compromised registry, resulting in high availability impact (A:H). There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

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

2.6LOW

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
1.0
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 62nd percentile among its peer group of 15,225 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (2)

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

Vendor Advisories (1)

goGHSA-9m3v-v4r5-ppx7medium

Notation vulnerable to denial of service from high number of artifact signatures

Jun 6, 2023

References

github.com / notaryproject/notation/commit/ed22fde52f6d70ae0b53521bd28c9ccafa868c24
Patch
github.com / notaryproject/notation/security/advisories/GHSA-9m3v-v4r5-ppx7
Vendor Advisory