Integer Overflow or Wraparound 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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-GOLANG-GOLANGORGXCRYPTOSSH-16795340
- published22 May 2026
- disclosed22 May 2026
- creditNCC Group Cryptography Services
Introduced: 22 May 2026
CVE-2026-39834 (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 Integer Overflow or Wraparound in the payload size calculation within the Write process. An attacker can cause the process to enter an infinite loop and exhaust system resources by sending a single write operation with data larger than 4GB.