CVE-2026-68930

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68930", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-31T21:49:24.927Z", "datePublished": "2026-08-03T15:34:41.216Z", "dateUpdated": "2026-08-03T16:46:32.324Z"}, "containers": {"cna": {"title": "Russh: Channel-scoped server callbacks can be reached without an open channel", "problemTypes": [{"descriptions": [{"cweId": "CWE-666", "lang": "en", "description": "CWE-666: Operation on Resource in Wrong Phase of Lifetime", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-696", "lang": "en", "description": "CWE-696: Incorrect Behavior Order", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg"}, {"name": "https://github.com/Eugeny/russh/commit/7c5659f8cf6f6f2f9989d12dba0ebf49dc50a171", "tags": ["x_refsource_MISC"], "url": "https://github.com/Eugeny/russh/commit/7c5659f8cf6f6f2f9989d12dba0ebf49dc50a171"}, {"name": "https://github.com/Eugeny/russh/releases/tag/v0.62.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/Eugeny/russh/releases/tag/v0.62.5"}], "affected": [{"vendor": "Eugeny", "product": "russh", "versions": [{"version": "< 0.62.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-03T15:34:41.216Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-m65r-rprj-r5rg", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-03T16:43:29.958225Z", "id": "CVE-2026-68930", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-03T16:46:32.324Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-68930", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-03T16:43:29.958225Z"}}}], "references": [{"url": "https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-03T16:46:21.122Z"}}], "cna": {"title": "Russh: Channel-scoped server callbacks can be reached without an open channel", "source": {"advisory": "GHSA-m65r-rprj-r5rg", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "Eugeny", "product": "russh", "versions": [{"status": "affected", "version": "< 0.62.5"}]}], "references": [{"url": "https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg", "name": "https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/Eugeny/russh/commit/7c5659f8cf6f6f2f9989d12dba0ebf49dc50a171", "name": "https://github.com/Eugeny/russh/commit/7c5659f8cf6f6f2f9989d12dba0ebf49dc50a171", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/Eugeny/russh/releases/tag/v0.62.5", "name": "https://github.com/Eugeny/russh/releases/tag/v0.62.5", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-666", "description": "CWE-666: Operation on Resource in Wrong Phase of Lifetime"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-696", "description": "CWE-696: Incorrect Behavior Order"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-863", "description": "CWE-863: Incorrect Authorization"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-03T15:34:41.216Z"}}}, "cveMetadata": {"cveId": "CVE-2026-68930", "state": "PUBLISHED", "dateUpdated": "2026-08-03T16:46:32.324Z", "dateReserved": "2026-07-31T21:49:24.927Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-08-03T15:34:41.216Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "russh", "vendor": "Eugeny", "versions": [{"status": "affected", "version": "< 0.62.5"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Russh es una biblioteca de cliente y servidor SSH de Rust. Antes de la versi\u00f3n 0.62.5, russh despacha retrollamadas de gestor con \u00e1mbito de canal para IDs de canal de destinatario que nunca fueron abiertos o confirmados en russh/src/server/encrypted.rs, server_read_authenticated, y la retrollamada exec_request. La versi\u00f3n 0.62.5 soluciona el problema."}], "id": "CVE-2026-68930", "lastModified": "2026-10-23T21:10:00.157", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-68930", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-03T16:43:29.958225Z", "version": "2.0.3"}}]}, "published": "2026-08-03T17:16:44.843", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/Eugeny/russh/commit/7c5659f8cf6f6f2f9989d12dba0ebf49dc50a171"}, {"source": "security-advisories@github.com", "url": "https://github.com/Eugeny/russh/releases/tag/v0.62.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/Eugeny/russh/security/advisories/GHSA-m65r-rprj-r5rg"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-666"}, {"lang": "en", "value": "CWE-696"}, {"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.62.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "russh", "source": "cna", "vendor": "Eugeny"}, "product": "russh", "vendor": "eugeny"}], "created": "2026-08-03T17:30:17.069606+00:00", "updated": "2026-08-04T21:45:04.735426+00:00", "vendors": ["eugeny", "eugeny$PRODUCT$russh"]}