VulnerabilityModified
CVE-2026-32283
This can lead to a denial of service.
HIGH 7.5EPSS 0.62%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.62% probability · 48th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770, CWE-764
- Affected
- golang/go
- Source
- security@golang.org
References
- https://go.dev/cl/763767Patch
- https://go.dev/issue/78334Issue Tracking
- https://groups.google.com/g/golang-announce/c/0uYbvbPZRWUMailing List, Release Notes
- https://pkg.go.dev/vuln/GO-2026-4870Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:10217
- https://access.redhat.com/errata/RHSA-2026:10219
- https://access.redhat.com/errata/RHSA-2026:10704
- https://access.redhat.com/errata/RHSA-2026:11507
- https://access.redhat.com/errata/RHSA-2026:11514
- https://access.redhat.com/errata/RHSA-2026:11704
- https://access.redhat.com/errata/RHSA-2026:11711
- https://access.redhat.com/errata/RHSA-2026:11712
- https://access.redhat.com/errata/RHSA-2026:11863
- https://access.redhat.com/errata/RHSA-2026:11881
- https://access.redhat.com/errata/RHSA-2026:14162
- https://access.redhat.com/errata/RHSA-2026:14200
- https://access.redhat.com/errata/RHSA-2026:14391
- https://access.redhat.com/errata/RHSA-2026:15980
- https://access.redhat.com/errata/RHSA-2026:16021
- https://access.redhat.com/errata/RHSA-2026:16024
- https://access.redhat.com/errata/RHSA-2026:16101
- https://access.redhat.com/errata/RHSA-2026:16102
- https://access.redhat.com/errata/RHSA-2026:16875
- https://access.redhat.com/errata/RHSA-2026:17075
- https://access.redhat.com/errata/RHSA-2026:17084
- https://access.redhat.com/errata/RHSA-2026:17287
- https://access.redhat.com/errata/RHSA-2026:18027
- https://access.redhat.com/errata/RHSA-2026:18032
- https://access.redhat.com/errata/RHSA-2026:19126
- https://access.redhat.com/errata/RHSA-2026:19132
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.