Detections
Analytics
CVE-2026-39830
high
Description
A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine could not be released by calling Close(), resulting in a resource leak per connection. Unsolicited global responses are now discarded.
References
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39830.json
https://pkg.go.dev/vuln/GO-2026-5017
https://groups.google.com/g/golang-announce/c/a082jnz-LvI
https://bugzilla.redhat.com/show_bug.cgi?id=2480684
https://access.redhat.com/security/cve/CVE-2026-39830
https://access.redhat.com/errata/RHSA-2026:43692
https://access.redhat.com/errata/RHSA-2026:43052
https://access.redhat.com/errata/RHSA-2026:42796
https://access.redhat.com/errata/RHSA-2026:42146
https://access.redhat.com/errata/RHSA-2026:41066
https://access.redhat.com/errata/RHSA-2026:41036
https://access.redhat.com/errata/RHSA-2026:41031
https://access.redhat.com/errata/RHSA-2026:41019
https://access.redhat.com/errata/RHSA-2026:40974
https://access.redhat.com/errata/RHSA-2026:40972
https://access.redhat.com/errata/RHSA-2026:40969
https://access.redhat.com/errata/RHSA-2026:40945
https://access.redhat.com/errata/RHSA-2026:40262
https://access.redhat.com/errata/RHSA-2026:40118
https://access.redhat.com/errata/RHSA-2026:37387
https://access.redhat.com/errata/RHSA-2026:37296
https://access.redhat.com/errata/RHSA-2026:37286
https://access.redhat.com/errata/RHSA-2026:37278
https://access.redhat.com/errata/RHSA-2026:37275
https://access.redhat.com/errata/RHSA-2026:37272
https://access.redhat.com/errata/RHSA-2026:37271
https://access.redhat.com/errata/RHSA-2026:37268
https://access.redhat.com/errata/RHSA-2026:37072
https://access.redhat.com/errata/RHSA-2026:36808
https://access.redhat.com/errata/RHSA-2026:36797
https://access.redhat.com/errata/RHSA-2026:36796
https://access.redhat.com/errata/RHSA-2026:36651
https://access.redhat.com/errata/RHSA-2026:36648
https://access.redhat.com/errata/RHSA-2026:36625
https://access.redhat.com/errata/RHSA-2026:36319
https://access.redhat.com/errata/RHSA-2026:36207
https://access.redhat.com/errata/RHSA-2026:36199