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CVE-2026-48110

Russh is a Rust SSH client & server library. From version 0.34.0 to before version 0.61.0, several russh client and server message handlers decoded attacker-controlled SSH strings, name-lists, and byte fields into owned allocations before applying field-specific bounds. A remote SSH peer could send oversized, high-fanout, or malformed length-prefixed fields and make the library allocate, attempt to allocate, or split data before rejecting input that should have been rejected earlier. This issue
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9a32e2f28f761d9dbdb83b078cb9b470ecb3712976e06dfe771101b438ce2b61
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"russh","vendor":"Eugeny","versions":[{"status":"affected","version":">= 0.34.0, < 0.61.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:aea71c7a4ca64e263b472effc030eeb336f8ecfe32e82729fba3f577a90b295d · sha256:0b21ea852f62d856… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aea71c7a4ca64e263b472effc030eeb336f8ecfe32e82729fba3f577a90b295d · sha256:0b21ea852f62d856… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:aea71c7a4ca64e263b472effc030eeb336f8ecfe32e82729fba3f577a90b295d · sha256:0b21ea852f62d856… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/Eugeny/russh/security/advisories/GHSA-4r3c-5hpg-58qr"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aea71c7a4ca64e263b472effc030eeb336f8ecfe32e82729fba3f577a90b295d · sha256:0b21ea852f62d856… · /containers/adp/0/references/0
{"name":"https://github.com/Eugeny/russh/security/advisories/GHSA-4r3c-5hpg-58qr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Eugeny/russh/security/advisories/GHSA-4r3c-5hpg-58qr"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aea71c7a4ca64e263b472effc030eeb336f8ecfe32e82729fba3f577a90b295d · sha256:0b21ea852f62d856… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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