CVE-2026-48113

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-48113", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-20T18:46:58.289Z", "datePublished": "2026-08-03T21:05:14.179Z", "dateUpdated": "2026-08-04T17:04:25.711Z"}, "containers": {"cna": {"title": "Chisel: ACL Bypass via Post-Handshake SSH Channel ExtraData Injection", "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "LOW", "baseScore": 8.5, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:L", "version": "4.0"}}], "references": [{"name": "https://github.com/jpillora/chisel/security/advisories/GHSA-24fp-5v3p-rvpw", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/jpillora/chisel/security/advisories/GHSA-24fp-5v3p-rvpw"}, {"name": "https://github.com/jpillora/chisel/commit/44310b65667a97901874ffdf4815b3732c22eaa3", "tags": ["x_refsource_MISC"], "url": "https://github.com/jpillora/chisel/commit/44310b65667a97901874ffdf4815b3732c22eaa3"}], "affected": [{"vendor": "jpillora", "product": "chisel", "versions": [{"version": "< 1.11.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-03T21:05:14.179Z"}, "descriptions": [{"lang": "en", "value": "Chisel is a TCP/UDP tunnel, transported over HTTP and secured via SSH. In versions prior to 1.11.5, authenticated clients can bypass --authfile ACL restrictions and tunnel traffic to arbitrary destinations reachable from the server. The ACL is enforced only during the initial handshake against declared remotes, but never on subsequent SSH channels that carry actual traffic. A malicious client can authenticate with a permitted remote, then open channels to any host:port it wants. This issue has been fixed in version 1.11.5."}], "source": {"advisory": "GHSA-24fp-5v3p-rvpw", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/jpillora/chisel/security/advisories/GHSA-24fp-5v3p-rvpw", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-04T17:03:52.127619Z", "id": "CVE-2026-48113", "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": "2026-08-04T17:04:25.711Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"cna": {"title": "Chisel: ACL Bypass via Post-Handshake SSH Channel ExtraData Injection", "source": {"advisory": "GHSA-24fp-5v3p-rvpw", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 8.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:L", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "LOW", "subAvailabilityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH"}}], "affected": [{"vendor": "jpillora", "product": "chisel", "versions": [{"status": "affected", "version": "< 1.11.5"}]}], "references": [{"url": "https://github.com/jpillora/chisel/security/advisories/GHSA-24fp-5v3p-rvpw", "name": "https://github.com/jpillora/chisel/security/advisories/GHSA-24fp-5v3p-rvpw", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/jpillora/chisel/commit/44310b65667a97901874ffdf4815b3732c22eaa3", "name": "https://github.com/jpillora/chisel/commit/44310b65667a97901874ffdf4815b3732c22eaa3", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Chisel is a TCP/UDP tunnel, transported over HTTP and secured via SSH. In versions prior to 1.11.5, authenticated clients can bypass --authfile ACL restrictions and tunnel traffic to arbitrary destinations reachable from the server. The ACL is enforced only during the initial handshake against declared remotes, but never on subsequent SSH channels that carry actual traffic. A malicious client can authenticate with a permitted remote, then open channels to any host:port it wants. This issue has been fixed in version 1.11.5."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-863", "description": "CWE-863: Incorrect Authorization"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-03T21:05:14.179Z"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-48113", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-04T17:03:52.127619Z"}}}], "references": [{"url": "https://github.com/jpillora/chisel/security/advisories/GHSA-24fp-5v3p-rvpw", "tags": ["exploit"]}], "providerMetadata": {"shortName": "CISA-ADP", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "dateUpdated": "2026-08-04T17:04:04.304Z"}}]}, "cveMetadata": {"cveId": "CVE-2026-48113", "state": "PUBLISHED", "dateUpdated": "2026-08-03T21:05:14.179Z", "dateReserved": "2026-05-20T18:46:58.289Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-08-03T21:05:14.179Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "chisel", "vendor": "jpillora", "versions": [{"status": "affected", "version": "< 1.11.5"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Chisel is a TCP/UDP tunnel, transported over HTTP and secured via SSH. In versions prior to 1.11.5, authenticated clients can bypass --authfile ACL restrictions and tunnel traffic to arbitrary destinations reachable from the server. The ACL is enforced only during the initial handshake against declared remotes, but never on subsequent SSH channels that carry actual traffic. A malicious client can authenticate with a permitted remote, then open channels to any host:port it wants. This issue has been fixed in version 1.11.5."}, {"lang": "es", "value": "Chisel es un t\u00fanel TCP/UDP, transportado sobre HTTP y asegurado v\u00eda SSH. En versiones anteriores a la 1.11.5, los clientes autenticados pueden eludir las restricciones de ACL de --authfile y tunelizar tr\u00e1fico a destinos arbitrarios accesibles desde el servidor. La ACL se aplica solo durante el handshake inicial contra remotos declarados, pero nunca en canales SSH posteriores que transportan tr\u00e1fico real. Un cliente malicioso puede autenticarse con un remoto permitido, luego abrir canales a cualquier host:puerto que desee. Este problema ha sido solucionado en la versi\u00f3n 1.11.5."}], "id": "CVE-2026-48113", "lastModified": "2026-10-23T21:10:00.157", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48113", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-04T17:03:52.127619Z", "version": "2.0.3"}}]}, "published": "2026-08-03T21:16:39.597", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/jpillora/chisel/commit/44310b65667a97901874ffdf4815b3732c22eaa3"}, {"source": "security-advisories@github.com", "url": "https://github.com/jpillora/chisel/security/advisories/GHSA-24fp-5v3p-rvpw"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/jpillora/chisel/security/advisories/GHSA-24fp-5v3p-rvpw"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.11.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "chisel", "source": "cna", "vendor": "jpillora"}, "product": "chisel", "vendor": "jpillora"}], "created": "2026-08-03T22:30:02.779940+00:00", "updated": "2026-08-04T20:45:03.027225+00:00", "vendors": ["jpillora", "jpillora$PRODUCT$chisel"]}