CVE-2025-13353
5.5 · MEDIUMOverview
CVE-2025-13353 is a medium-severity vulnerability affecting cloudflare gokey. It was published on December 2, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
In gokey versions <0.2.0,
a flaw in the seed decryption logic resulted in passwords incorrectly
being derived solely from the initial vector and the AES-GCM
authentication tag of the key seed.
This issue has been fixed in gokey version 0.2.0. This is a breaking change. The fix has invalidated any passwords/secrets that were derived from the seed file (using the -s option). Even if the input seed file stays the same, version 0.2.0 gokey will generate different secrets.
Impact
This vulnerability impacts generated keys/secrets using a seed file as an entropy input (using the -s option). Keys/secrets generated just from the master password (without the -s
option) are not impacted. The confidentiality of the seed itself is
also not impacted (it is not required to regenerate the seed itself).
Specific impact includes:
* keys/secrets generated from a seed file may have lower entropy: it
was expected that the whole seed would be used to generate keys (240
bytes of entropy inp
Remediation
Check the references section for vendor advisories and patches from cloudflare. Update gokey to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cloudflare | gokey | >= 0, < 0.2.0 | Affected |
Frequently Asked Questions
What is CVE-2025-13353?
CVE-2025-13353 is a medium-severity vulnerability affecting cloudflare gokey. It was published on December 2, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2025-13353?
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2025-13353?
Check the references section for vendor advisories and patches from cloudflare. Update gokey to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-13353?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-13353 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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