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CVE-2025-13353

20
FAUCET Score

CVE-2025-13353 describes a flaw in Cloudflare's gokey utility (versions prior to 0.2.0) where password derivation from a seed file incorrectly relied on only 28 bytes of entropy instead of the expected 240. This vulnerability, categorized as CWE-330, could allow a malicious actor with possession of the seed file to recover all generated passwords without needing the master password. With a CVSS score of 5.5 (Medium), the attack requires local access and has a high confidentiality impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.2.0CPE matchmatch criteria
cpe:2.3:a:cloudflare:gokey:*:*:*:*:*:go:*:*
>= 0.1.0, < 0.2.0CPE match
cpe:2.3:a:cloudflare:gokey:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 4.0

7.1HIGH

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/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

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
HIGH
SS Integrity
HIGH
SS Availability
HIGH
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.15%
Probability of exploitation in next 30 days
EPSS Percentile
4.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0015 is in the 29th percentile among its peer group of 15,938 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

gopatch availablevia ghsa
Product: github.com/cloudflare/gokeyFixed in: 0.2.0
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

goGHSA-69jw-4jj8-fcxmhigh

gokey allows secret recovery from a seed file without the master password

Dec 2, 2025

References

github.com / cloudflare/gokey/security/advisories/GHSA-69jw-4jj8-fcxm
Vendor Advisory