CVE-2026-48113

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

No CVSS.

References

Link	Resource
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

Configurations

No configuration.

History

23 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) 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.

Information

Published : 2026-08-03 21:16

Updated : 2026-10-23 21:10

NVD link : CVE-2026-48113

Mitre link : CVE-2026-48113

CVE.ORG link : CVE-2026-48113

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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