CVE-2026-32283

Aliases:GO-2026-4870BIT-golang-2026-32283
Advisory lineage Upstream: 0 Downstream: 103
Analyzed
Published: 08 Apr 2026, 01:06
Last modified:22 Jul 2026, 12:08

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
0.62% LOW
1% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Apr 2026, 01:06
Published
Vulnerability first disclosed
22 Jul 2026, 12:08
Last Modified
Vulnerability information updated

Description

If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.62%• Percentile: 45%

Techniques & Countermeasures

  • CWE-770•Allocation of Resources Without Limits or Throttling

    The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

  • CWE-764•Multiple Locks of a Critical Resource

    The product locks a critical resource more times than intended, leading to an unexpected state in the system.

Affected Systems

  • go standard library•crypto/tls

    < 1.25.9 | ≥ 1.26.0-0, < 1.26.2

  • golang•go

    < 1.25.9 | ≥ 1.26.0, < 1.26.2

  • Go•stdlib

    ≥ 1.26.0-0, < 1.26.2

References (104)