Missing Release of Resource after Effective Lifetime Affecting golang.org/x/crypto/ssh package, versions <0.52.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GOLANGORGXCRYPTOSSH-16796305
- published22 May 2026
- disclosed22 May 2026
- creditUnknown
Introduced: 22 May 2026
CVE-2026-39830 (opens in a new tab)How to fix?
Upgrade golang.org/x/crypto/ssh to version 0.52.0 or higher.
Overview
golang.org/x/crypto/ssh is a SSH client and server
Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime through the handling of unsolicited global request responses, which can fill an internal buffer and block the connection's read loop. An attacker can cause a resource leak and prevent the release of blocked goroutines by sending unexpected responses.