{"cve":"CVE-2026-48113","nvd":{"published":"2026-08-03T21:16:39.597","modified":"2026-10-23T21:10:00.157","status":"Awaiting Analysis","description":"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.","cvss_v4":{"vector":"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","score":8.5},"cvss_v3":null,"cwes":["CWE-863"],"references":["https://github.com/jpillora/chisel/commit/44310b65667a97901874ffdf4815b3732c22eaa3","https://github.com/jpillora/chisel/security/advisories/GHSA-24fp-5v3p-rvpw","https://github.com/jpillora/chisel/security/advisories/GHSA-24fp-5v3p-rvpw"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:34.184483516+00:00"},"epss":{"cve":"CVE-2026-48113","score":0.00387,"percentile":0.32461,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-24fp-5v3p-rvpw","url":"https://osv.dev/vulnerability/GHSA-24fp-5v3p-rvpw","summary":"Chisel has an ACL Bypass via Post-Handshake SSH Channel ExtraData Injection","modified":"2026-06-17T00:26:37.432030667Z","packages":[{"ecosystem":"Go","name":"github.com/jpillora/chisel","purl":"pkg:golang/github.com/jpillora/chisel","ranges":["<1.11.5"],"fixed":["1.11.5"]}]},{"id":"GO-2026-5054","url":"https://osv.dev/vulnerability/GO-2026-5054","summary":"Chisel has an ACL Bypass via Post-Handshake SSH Channel ExtraData Injection in github.com/jpillora/chisel","modified":"2026-06-17T00:15:12.886859911Z","packages":[{"ecosystem":"Go","name":"github.com/jpillora/chisel","purl":"pkg:golang/github.com/jpillora/chisel","ranges":["<1.11.5"],"fixed":["1.11.5"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}