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CVE-2015-9258

19
FAUCET Score

CVE-2015-9258 is a high-severity vulnerability affecting Docker Notary before version 0.1, specifically within the gotuf/signed/verify.go component. It allows an attacker to forge signatures by manipulating the signature algorithm field, potentially forcing a misinterpretation of an RSA-PSS key as Ed25519 elliptic-curve data. With a CVSS score of 7.5 (High), this vulnerability is network-exploitable with low attack complexity and can lead to high integrity impacts, though confidentiality and availability are not affected. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.1CPE matchmatch criteria
cpe:2.3:a:docker:notary:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.06%
Probability of exploitation in next 30 days
EPSS Percentile
61.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0106 is in the 38th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 (1)

gopatch availablevia ghsa
Product: github.com/docker/notaryFixed in: 0.1.0

Vendor Advisories (1)

goGHSA-785h-hrf7-gqxchigh

Docker Notary Signature Algorithm Not Matched to Key vulnerability

May 14, 2022

References

docs.docker.com / notary/changelog
Third Party Advisory
github.com / theupdateframework/notary/blob/master/docs/resources/ncc_docker_notary_audit_2015_07_31.pdf
Third Party Advisory