CVE-2026-59831

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{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-59831", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-14T01:20:49.738308Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-14T01:20:55.417Z"}}], "cna": {"title": "GitHub CLI `gh codespace jupyter` could allow remote code execution when connecting to a malicious Codespace", "source": {"advisory": "GHSA-8cg3-r6g9-fpg2", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}], "affected": [{"vendor": "cli", "product": "cli", "versions": [{"status": "affected", "version": ">= 2.10.0, < 2.96.0"}]}], "references": [{"url": "https://github.com/cli/cli/security/advisories/GHSA-8cg3-r6g9-fpg2", "name": "https://github.com/cli/cli/security/advisories/GHSA-8cg3-r6g9-fpg2", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/cli/cli/commit/b300f2ec7ec9dc9addc39b2ad88c54097ded7ca0", "name": "https://github.com/cli/cli/commit/b300f2ec7ec9dc9addc39b2ad88c54097ded7ca0", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/cli/cli/releases/tag/v2.96.0", "name": "https://github.com/cli/cli/releases/tag/v2.96.0", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "GitHub CLI (gh) is GitHub\u2019s official command line tool. From 2.10.0 through 2.95.0, connecting to a malicious Codespace with gh codespace jupyter can allow command execution because the command opens a JupyterLab URL supplied by a process inside the Codespace without validating that it is a loopback HTTP or HTTPS address, allowing a crafted vscode:// or vscode-insiders:// URL to be handed to VS Code. This issue is fixed in version 2.96.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-829", "description": "CWE-829: Inclusion of Functionality from Untrusted Control Sphere"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-09T22:11:05.418Z"}}}, "cveMetadata": {"cveId": "CVE-2026-59831", "state": "PUBLISHED", "dateUpdated": "2026-07-14T01:20:59.985Z", "dateReserved": "2026-07-07T15:00:50.979Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-07-09T22:11:05.418Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "cli", "vendor": "cli", "versions": [{"status": "affected", "version": ">= 2.10.0, < 2.96.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "GitHub CLI (gh) is GitHub\u2019s official command line tool. From 2.10.0 through 2.95.0, connecting to a malicious Codespace with gh codespace jupyter can allow command execution because the command opens a JupyterLab URL supplied by a process inside the Codespace without validating that it is a loopback HTTP or HTTPS address, allowing a crafted vscode:// or vscode-insiders:// URL to be handed to VS Code. This issue is fixed in version 2.96.0."}], "id": "CVE-2026-59831", "lastModified": "2026-07-14T02:16:57.493", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.3, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59831", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-14T01:20:49.738308Z", "version": "2.0.3"}}]}, "published": "2026-07-09T23:17:05.483", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/cli/cli/commit/b300f2ec7ec9dc9addc39b2ad88c54097ded7ca0"}, {"source": "security-advisories@github.com", "url": "https://github.com/cli/cli/releases/tag/v2.96.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/cli/cli/security/advisories/GHSA-8cg3-r6g9-fpg2"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-829"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.10.0,2.96.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "cli", "source": "cna", "vendor": "cli"}, "product": "cli", "vendor": "cli"}], "created": "2026-07-09T23:30:16.329278+00:00", "updated": "2026-08-03T04:30:18.192502+00:00", "vendors": ["cli", "cli$PRODUCT$cli"]}