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Vulnerabilities CVE-2026-70615

CVE-2026-70615

High
Open
TLP:CLEAR

boringproxy 0.10.0 SSH authorized_keys Injection via Tunnel Creation

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Description

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.

Details

CVSS Score
8.5
EPSS Score
0.22%

12.1th percentile

CVSS Vector
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
Confidence
90%
Published
Aug 5, 2026
Last Modified
Aug 5, 2026
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