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9.3
CVE-2026-58138: Orkes Conductor 3.21.21 Remote Code Execution Risk
CVE-2026-58138
CVE-2026-58138
Summary
The Orkes Conductor software, used for workflow management, has a security flaw that allows unauthorized users to run any system command on the server. This is a significant risk because it could be exploited by hackers to gain control of the server or steal sensitive information. To protect against this, make sure to update Orkes Conductor to version 3.30.2 or later.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| conductor-oss | conductor | < 3.30.2 |
Original title
Orkes Conductor 3.21.21 < 3.30.2 Unauthenticated RCE via GraalVM Script Evaluators
Original description
Orkes Conductor 3.21.21 before 3.30.2 contains an unauthenticated remote code execution vulnerability that allows remote attackers to execute arbitrary OS commands by submitting inline workflow definitions containing malicious JavaScript or Python expressions to the workflow API endpoint prior to authentication. Attackers can exploit unsandboxed GraalVM evaluators configured with HostAccess.ALL or allowAllAccess(true) through INLINE, LAMBDA, DO_WHILE, and SWITCH task types to invoke arbitrary system commands via Java reflection or direct subprocess calls.
nvd CVSS3.1
9.8
nvd CVSS4.0
9.3
Vulnerability type
CWE-94
Code Injection
- https://github.com/conductor-oss/conductor/commit/87a7d96aabbb706d6e84f812b93da5...
- https://github.com/conductor-oss/conductor/commit/c691e35e768caeb802c9f06ecdd967...
- https://github.com/conductor-oss/conductor/releases/tag/v3.30.2
- https://www.cve.org/CVERecord?id=CVE-2025-26074
- https://www.vulncheck.com/advisories/orkes-conductor-unauthenticated-rce-via-gra...
Published: 30 Jun 2026 · Updated: 23 Jul 2026 · First seen: 30 Jun 2026