What is CVE-2026-70615?

CVE-2026-70615 is a critical-severity vulnerability in Boringproxy, classified under CRLF Injection. CVSS score: 9.9/10. Published 2026-08-05.

How severe is CVE-2026-70615?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Vulnerability in Boringproxy

CVE-2026-70615

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…

Vulnerability class: CRLF Injection

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Boringproxy — versions 0

Weakness classification (CWE)

CWE-93 — CRLF Injection

References

disclosure@vulncheck.com (technical-description, exploit)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-70615?: CVE-2026-70615 is a critical-severity vulnerability in Boringproxy, classified under CRLF Injection. CVSS score: 9.9/10. Published 2026-08-05.
How severe is CVE-2026-70615?: Critical severity. CVSS v3 base score is 9.9 out of 10.