{"id":"CVE-2026-48113","sourceIdentifier":"security-advisories@github.com","published":"2026-08-03T21:16:39.597","lastModified":"2026-10-23T21:10:00.157","vulnStatus":"Awaiting Analysis","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 túnel TCP/UDP, transportado sobre HTTP y asegurado vía SSH. En versiones anteriores a la 1.11.5, los clientes autenticados pueden eludir las restricciones de ACL de --authfile y tunelizar tráfico 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 tráfico 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 versión 1.11.5."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"jpillora","product":"chisel","versions":[{"version":"< 1.11.5","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","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","baseScore":8.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"LOW","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-04T17:03:52.127619Z","id":"CVE-2026-48113","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-863"}]}],"references":[{"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":"security-advisories@github.com"},{"url":"https://github.com/jpillora/chisel/security/advisories/GHSA-24fp-5v3p-rvpw","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}