Is CVE-2026-109403 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-109403 being exploited in the wild.

How severe is CVE-2026-109403?

High severity, with a CVSS score of 7.3, published 13 October 2026.

Which products and versions are affected?

Conductor-Oss Conductor up to 3.32.5.

Is there a fix for CVE-2026-109403?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-109403 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-109403?

Check whether you run Conductor-Oss Conductor at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-109403: conductor-oss conductor server-side request forgery in Agent Card Fetching

CVE-2026-109403 · Severity: high · CVSS 7.3 · Published 2026-10-13

Conductor OSS is an orchestration engine used to coordinate distributed workflows. A server-side request forgery vulnerability in the agent card fetching component allows remote attackers to manipulate requests and potentially access internal resources, obtain sensitive data, or interact with internal services without authorization.

Technologies: Conductor-Oss Conductor. Vendors: Conductor-Oss.

Quick answers

Is CVE-2026-109403 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-109403 being exploited in the wild.
How severe is CVE-2026-109403?: High severity, with a CVSS score of 7.3, published 13 October 2026.
Which products and versions are affected?: Conductor-Oss Conductor up to 3.32.5.
Is there a fix for CVE-2026-109403?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-109403 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-109403?: Check whether you run Conductor-Oss Conductor at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A server-side request forgery (SSRF) vulnerability exists in the A2AService.getAgentCard function in ai/src/main/java/org/conductoross/conductor/ai/a2a/A2AService.java. The vulnerability is caused by improper validation of the agentUrl parameter, allowing an attacker to supply a malicious URL. The attack is remotely exploitable and may be leveraged to access internal resources or metadata endpoints.

Affected products

conductor-oss conductor up to 3.32.5

Timeline

2026-10-13: disclosed

References

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