Eugeny russh up to 0.62.4 Handler Callbacks encrypted.rs server_read_authenticated operation on resource in wrong phase of lifetime

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Eugeny russh up to 0.62.4. It has been declared as very critical. The affected element is the function server_read_authenticated of the file russh/src/server/encrypted.rs of the component Handler Callbacks. Such manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2026-68930. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Eugeny russh up to 0.62.4. It has been rated as very critical. Affected by this issue is the function server_read_authenticated of the file russh/src/server/encrypted.rs of the component Handler Callbacks. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-666. The product performs an operation on a resource at the wrong phase of the resource's lifecycle, which can lead to unexpected behaviors. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-68930 since 07/31/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/10/2026).

Upgrading to version 0.62.5 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.0

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Operation on resource in wrong phase of lifetime
CWE: CWE-666
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: russh 0.62.5

Timelineinfo

07/31/2026 CVE reserved
08/03/2026 +3 days Advisory disclosed
08/03/2026 +0 days VulDB entry created
09/10/2026 +38 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-68930 (🔒)
GCVE (CVE): GCVE-0-2026-68930
GCVE (VulDB): GCVE-100-385622

Entryinfo

Created: 08/03/2026 18:34
Updated: 09/10/2026 10:04
Changes: 08/03/2026 18:34 (57), 09/10/2026 10:04 (13)
Complete: 🔍
Cache ID: 216::103

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