Russh is a Rust SSH client and server library. Prior to 0.62.6, the USERAUTH_REQUEST path reached from server::run_stream in russh/src/server/encrypted.rs increments self.common.auth_attempts but never compares it with server::Config.max_auth_attempts. An unauthenticated remote client can continue submitting authentication requests on one connection beyond the configured cap, bypassing the deployment's attempt-limiting policy and increasing online guessing opportunity and backend authentication workload. This issue is fixed in version 0.62.6.
CVE-2026-102825
This low-severity CVE scores 3.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (18th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 3.7
- EG Score
- 3.7LOWmedium confidence
- EG Risk
- 33EG Risk 33/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity37% × 45%Exploitation40% × 40%Automatability0% × 15%CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.3%
- EPSS %ILE
- 18th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
September 29, 2026
Last Modified
September 30, 2026
References (4)
- security-advisories@githubhttps://github.com/Eugeny/russh/commit/f8fd0b11a393364dc7f01a182482d86adafdd653
- security-advisories@githubhttps://github.com/Eugeny/russh/releases/tag/v0.62.6
- security-advisories@githubhttps://github.com/Eugeny/russh/security/advisories/GHSA-g6xm-f9xp-qq35
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/Eugeny/russh/security/advisories/GHSA-g6xm-f9xp-qq35
Vendor Advisories for CVE-2026-102825(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | openshell-main-0.1.2-0.2.hum1 | 2026-10-01 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
crates.io(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| russh | — | 0.62.6 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 10× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-04 01:12 UTCEG score recompute
- 2026-10-04 01:12 UTCVendor advisory
- 2026-10-03 14:25 UTCEPSS rescore
- 2026-10-01 19:49 UTCEPSS rescore
- 2026-09-30 20:23 UTCEG score recompute
- 2026-09-30 19:36 UTCEG score recompute
- 2026-09-30 15:02 UTCEPSS rescore
- 2026-09-29 19:20 UTCEG score recompute
- 2026-09-29 18:50 UTCEG score recompute
- 2026-09-29 18:48 UTCMITRE cvelistV5first tracked
Related CVEs(same product + same vendor + same CWE)
Same product
10 showncrates.io:russh
Same vendor
3 shownredhat:RHSA-2026:74586
Frequently asked(5)
What is CVE-2026-102825?
When was CVE-2026-102825 disclosed?
Is CVE-2026-102825 actively exploited?
What is the CVSS score of CVE-2026-102825?
How do I remediate CVE-2026-102825?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-102825
Is Your Infrastructure Affected by CVE-2026-102825?
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