ChangeIntel IT change radar
Public mode

No access to your tenant or devices. Every item links to its source. What this means

Sources need attention Customize Public modeDiscuss ChangeIntel on Discord
CVE-2026-39830

Invoking client can cause server deadlock on unexpected responses in golang.org/x/crypto/ssh

cve-program · severity unknownEUVD CVSS 3.1 9.1 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0 · Secondary 9.1 CRITICALCVSS 3.1 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c · Secondary 7.5 HIGHCVSS_V3 Publisher rating CRITICALFixed by golang.org/x/crypto 0.52.0osv · severity unknownFixed by golang.org/x/crypto 0.52.0KEV status unknown
Original advisory

cve-program · CVE-2026-39830

Published

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.

Read the publisher's advisory

euvd · EUVD-2026-31397

Published

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.

Read the publisher's advisory

nvd · CVE-2026-39830

Published

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.

Read the publisher's advisory

osv · GHSA-vgwf-h737-ff37

Published

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.

Read the publisher's advisory

osv · GO-2026-5017

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

Related advisories and sources

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-39830 · CVE overview and exploitation status

EUVD-2026-31397

GHSA-vgwf-h737-ff37

GO-2026-5017

cve-program · CVE-2026-39830

euvd · EUVD-2026-31397

nvd · CVE-2026-39830

osv · GHSA-vgwf-h737-ff37

osv · GO-2026-5017

Related changes

Linked by CVE identifier
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 12 Nov 19:39 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

No accounts or analytics; your preferences stay in your browser. Information, not advice. ChangeIntel is an independent tool and is not affiliated with or endorsed by Microsoft, Apple, Google, Broadcom (VMware), Jamf, Oracle, Mozilla, or any other vendor it covers. Product names are trademarks of their owners. Built by Evotec.