CVE-2026-32280

HIGH EPSS 29.6%
Published Apr 8, 20262mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Apr 8, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
29.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-770

Affected Products 2

VendorProductVersionRange
golanggo* <1.25.9
golanggo*≥1.26.0  –  <1.26.2

References 4

  • go.dev https://go.dev/cl/758320
    Patch
  • go.dev https://go.dev/issue/78282
    Issue Tracking
  • groups.google.com https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU
    Mailing ListRelease Notes
  • pkg.go.dev https://pkg.go.dev/vuln/GO-2026-4947
    Vendor Advisory

Remediation

  • go.dev https://go.dev/cl/758320
    Patch