HIGHCVE-2026-32280Published Modified CNA Go
CVE-2026-32280: Unexpected work during chain building in crypto/x509
During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.
Metrics
- CVSS v3.1
- 7.5
- Severity
- HIGH
- Fixed in
- 1.25.9
- Affected Products
- 1
Fix available
1.25.91.26.2
Affected packages
- Go standard library / crypto/x509< 1.25.9 (from 0) · < 1.26.2 (from 1.26.0-0)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HReferences