golang.org/x/crypto: Invoking client can cause server deadlock on unexpected responses
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.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-39830US | — | — | ||
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… | ||||
02
references
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2026:29455WEB
- https://access.redhat.com/errata/RHSA-2026:35833WEB
- https://access.redhat.com/errata/RHSA-2026:36199WEB
- https://access.redhat.com/errata/RHSA-2026:36207WEB
- https://access.redhat.com/errata/RHSA-2026:36319WEB
- https://access.redhat.com/errata/RHSA-2026:36625WEB
- https://access.redhat.com/errata/RHSA-2026:36648WEB
- https://access.redhat.com/errata/RHSA-2026:36651WEB
scry
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan