CVE-2025-68121

Published Feb 5, 2026

Last updated 13 days ago

CVSS critical 10.0

Tls

Golang

Mysql

SSL

Overview

Description: During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the returned Config, or uses Config.GetConfigForClient. This can cause a client to resume a session with a server that it would not have resumed with during the initial handshake, or cause a server to resume a session with a client that it would not have resumed with during the initial handshake.
Source: security@golang.org
NVD status: Modified
Products: go

Risk scores

CVSS 3.1

Type: Primary
Base score: 10
Impact score: 6
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Severity: CRITICAL

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-295

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "9FEE539A-EDC2-4044-A38C-5A0FDF567509",
            "versionEndExcluding": "1.24.13",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "B275853C-E253-485B-B469-31D1A7383965",
            "versionEndExcluding": "1.25.7",
            "versionStartIncluding": "1.25.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:golang:go:1.26.0:rc1:*:*:*:*:*:*",
            "matchCriteriaId": "E529A0EC-B944-4E2F-B26A-2A9F31AFF240",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:golang:go:1.26.0:rc2:*:*:*:*:*:*",
            "matchCriteriaId": "553D6D90-140E-4A54-86A3-00E66AC30F3C",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.

Overview

Risk scores

CVSS 3.1

Weaknesses

Social media

Configurations

Related CVEs

References