SSRF in Decolua 9router
CVE-2026-55641
9Router is an AI router & token saver. Prior to 0.5.2, 9router determines whether a /v1 LLM proxy request is local by reading the client-controlled Host header, allowing a remote unauthenticated attacker to send Host: localhost and bypass…
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
Affected products
- Decolua 9router — versions < 0.5.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55641?
- CVE-2026-55641 is a high-severity vulnerability in Decolua 9router, classified under Authentication Bypass by Spoofing. CVSS score: 8.2/10. Published 2026-07-10.
- How severe is CVE-2026-55641?
- High severity. CVSS v3 base score is 8.2 out of 10.