CVE-2026-32283: Go standard library crypto/tls · Improper Locking
Affects Go standard library crypto/tlsSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 1.26.2 or 1.25.9 soon.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.26.2, 1.25.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 8 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade Go standard library crypto/tls to 1.26.2 or 1.25.9.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Go standard librarycrypto/tls | Affected
| Fixed in
|
| Go standard librarycrypto/tls | Affected
| Fixed in
|
Gocrypto/tlspkg:golang/crypto/tlsOther threats | Affected
| Fixed in
|
Gogithub.com/golang/go/src/crypto/tlspkg:golang/github.com/golang/go/src/crypto/tlsOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available. Red Hat has released security updates for affected products including Red Hat Ansible Automation Platform 2.6 and related components. Users should apply the provided patches or upgrade to fixed versions as per the vendor advisories. No additional mitigations are specified or required beyond applying the official fixes.
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.
References
- go.dev/cl/763767 (opens in a new tab)
- go.dev/issue/78334 (opens in a new tab)
- groups.google.com/g/golang-announce/c/0uYbvbPZRWU (opens in a new tab)
- pkg.go.dev/vuln/GO-2026-4870 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-32283 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2456338 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32283.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:24762 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:41019 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:16101 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:24761 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:27076 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:14391 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:36796 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:28047 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:39810 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:34365 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:20569 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:23103 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19715 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:16024 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19550 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:18032 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:18027 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:17084 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19719 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19750 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:20570 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:22713 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19714 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:20571 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19450 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:10217 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:11712 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:11881 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:17075 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:29195 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:22937 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:24470 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:47719 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:47721 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:48036 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:34192 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:47716 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:47910 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:34196 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:34197 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:20607 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:19722 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:16021 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:20556 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:10219 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:11711 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:11704 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:29455 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:29703 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:22714 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:26447 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:28074 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:26571 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:26636 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:22423 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:22347 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:23345 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:7385 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:7291 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:22485 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:41928 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:42644 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:14162 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:55898 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:55903 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:55900 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:57802 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:57801 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:56910 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:57409 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60520 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:65126 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:65343 (opens in a new tab)
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- access.redhat.com/errata/RHSA-2026:67319 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:68504 (opens in a new tab)