Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2025-66564

Sigstore Timestamp Authority allocates excessive memory during request parsing in github.com/sigstore/timestamp-authority
Back to all
CVE

CVE-2025-66564

Sigstore Timestamp Authority allocates excessive memory during request parsing in github.com/sigstore/timestamp-authority

Sigstore Timestamp Authority allocates excessive memory during request parsing in github.com/sigstore/timestamp-authority

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
C
H
U
0
-
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Related Resources

No items found.

References

https://github.com/sigstore/timestamp-authority/security/advisories/GHSA-4qg8-fj49-pxjh, https://nvd.nist.gov/vuln/detail/CVE-2025-66564, https://github.com/sigstore/timestamp-authority/commit/0cae34e197d685a14904e0bad135b89d13b69421

Severity

7.5

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.5
EPSS Probability
0.00019%
EPSS Percentile
0.04778%
Introduced Version
0,v2.0.0,v2.0.0-20251114175826-09f902e89e01,v1.1.0,v0.0.0-20230412225405-ad80ccb62b1e
Fix Available
2.0.3,v2.0.3,v2.0.0-20251204185622-0cae34e197d6

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading