CVE-2026-70615
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H
Summary
boringproxy through 0.10.0 contains a newline injection vulnerability that allows authenticated low-privileged users with tunnel-creation permission to inject arbitrary lines into the server account's SSH authorized_keys file by supplying a percent-encoded newline character in the domain parameter of the tunnel creation endpoint. Attackers can insert an unrestricted public key entry into authorized_keys to gain persistent shell access, and subsequently read cleartext credentials from the database file including all user tokens, tunnel private keys, and TLS certificates.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| boringproxy | boringproxy | 0 <= 0.10.0 | affected |
Weaknesses
- CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')
References
- https://github.com/theopaid/Remote-Code-Execution-And-Privilege-Escalation-Through-SSH-Authorized-Keys-Injection-boringproxy-/blob/master/README.md
- https://www.vulncheck.com/advisories/boringproxy-ssh-authorized-keys-injection-via-tunnel-creation
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