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MediumVulnerabilityCVE-2026-116773updated 30 Oct 2026, 22:59 UTC

russh's SSH client is susceptible to unbounded allocations via EXT_INFO packets

Fixed in russh 0.65 · out Official source
SeverityMediumCVSS 4.3 of 10
Being exploited?UnclearNo reports either way yet
Fix available?Yesrussh 0.65 · since 30 Oct 2026
How sure is this?Official sourceBacked by an official source

Are you affected?

Package / productAffected versionsFixed in
russh · rust< 0.650.65

Timeline

  1. 30 Oct 2026, 22:58 UTC
    Publicly disclosed
  2. 30 Oct 2026, 22:58 UTC
    Reported by GitHub Advisory · GitHub Advisory
  3. 30 Oct 2026, 22:59 UTC
    Picked up by Zero Radar

Sources 1 report, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-116773 · GHSA-4p9f-7p9m-5vfg
CVSS
4.3 / 10
EPSS
0.3% chance of exploitation within 30 days
Disclosed
30 Oct 2026, 22:58 UTC
On Zero Radar
30 Oct 2026, 22:59 UTC (1 min after disclosure)
Last change
30 Oct 2026, 22:59 UTC

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russh's SSH client is susceptible to unbounded allocations via EXT_INFO packets · Zero Radar