CVE-2026-109403 conductor-oss conductor Agent Card Fetching A2AService.java A2AService.getAgentCard server-side request forgery
Remote attackers can exploit a server-side request forgery vulnerability in Conductor's Agent Card Fetching to access internal resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-109403?
CVE-2026-109403 is a medium-severity server-side request forgery vulnerability in conductor-oss conductor, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was determined in conductor-oss conductor up to 3.32.5. Affected by this vulnerability is the function A2AService.getAgentCard of the file ai/src/main/java/org/conductoross/conductor/ai/a2a/A2AService.java of the component Agent Card Fetching. Executing a manipulation of the argument agentUrl can lead to server-side request forgery. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
Weakness: CWE-918
Which versions are affected by CVE-2026-109403?
How do I fix CVE-2026-109403?
No fix has been published for CVE-2026-109403 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-2026-109403 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109403 exists.
Sources
Also known as GHSA-5469-w5gg-3qjr.