CVE-2026-15508 Helicone ai-gateway AWS Metadata Service service.rs build_target_url server-side request forgery
Remote attackers can exploit a flaw in Helicone ai-gateway to perform server-side request forgery, potentially accessing internal AWS metadata services.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15508?
CVE-2026-15508 is a medium-severity server-side request forgery vulnerability in Helicone ai-gateway, published on 12 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in Helicone ai-gateway up to 0.2.0-beta.30. This affects the function build_target_url of the file ai-gateway/src/dispatcher/service.rs of the component AWS Metadata Service. Executing a manipulation of the argument extracted_path_and_query can lead to server-side request forgery. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-918
Which versions are affected by CVE-2026-15508?
How do I fix CVE-2026-15508?
No fix has been published for CVE-2026-15508 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-15508 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15508 exists.
Sources
Also known as GHSA-9fxj-mchq-843p.