Description
Due to the design of the name constraint checking algorithm, the processing time of some inputs scale non-linearly with respect to the size of the certificate. This affects programs which validate arbitrary certificate chains.
References (5)
Core 5
Core References
Patch
https://go.dev/cl/709854
Issue Tracking
https://go.dev/issue/75681
Mailing List, Release Notes
https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI
Vendor Advisory
https://pkg.go.dev/vuln/GO-2025-4007
Mailing List, Release Notes
http://www.openwall.com/lists/oss-security/2025/10/08/1
Scores
CVSS v3
7.5
EPSS
0.0037
EPSS Percentile
28.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-407
Status
published
Products (1)
golang/go
< 1.24.9
Published
Oct 29, 2025
Tracked Since
Feb 18, 2026