Monitor vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
8.5
CVE-2026-70615: boringproxy 0.10.0 allows unauthorized SSH access
CVE-2026-70615 · published 1 month ago
Summary
An attacker can gain persistent access to a boringproxy server by manipulating the SSH settings. This could allow them to read sensitive information such as user credentials and keys. To fix this, update boringproxy to the latest version.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| boringproxy | boringproxy | <= 0.10.0 |
Original advisory text
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 accoun...
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.
References
- https://github.com/theopaid/Remote-Code-Execution-And-Privilege-Escalation-Throu... technical-description exploit
- https://www.vulncheck.com/advisories/boringproxy-ssh-authorized-keys-injection-v... third-party-advisory
- https://github.com/boringproxy/boringproxy Product
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/70xxx/CVE-2026-70615... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-70615 Vendor Advisory
Severity
8.5
High
CVSS 3.1: 9.9 (MITRE)
CVSS 4.0: 7.8 (OSV)
Exploitation
EPSS <1%
Type
CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')
Timeline
Published5 Aug 2026
Updated24 Aug 2026
First seen5 Aug 2026
Monitor software like this
Free during beta