CVE-2026-68930

Summary

Russh is a Rust SSH client & server library. Prior to 0.62.5, russh dispatches channel-scoped Handler callbacks for recipient channel IDs that were never opened or confirmed in russh/src/server/encrypted.rs, server_read_authenticated, and the exec_request callback. Version 0.62.5 fixes the issue.

Affected Software

Weaknesses

• CWE-666: CWE-666: Operation on Resource in Wrong Phase of Lifetime
• CWE-696: CWE-696: Incorrect Behavior Order
• CWE-863: CWE-863: Incorrect Authorization

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg

References

• https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg
• https://github.com/Eugeny/russh/commit/7c5659f8cf6f6f2f9989d12dba0ebf49dc50a171
• https://github.com/Eugeny/russh/releases/tag/v0.62.5

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