Orkes Conductor 3.21.21 < 3.30.2 Unauthenticated RCE via GraalVM Script Evaluators
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| conductor-oss | conductor | 3.21.21 to before 3.30.2 | 3.30.2 | Patch available | CNA |
- conductor Vendorconductor-oss Affected 3.21.21 to before 3.30.2 Fixed in 3.30.2 Patch available CNA
Remediation
- Fix · CNA conductor (conductor-oss) Fixed in 3.30.2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-58138
- 2026-10-03 Alias added: GHSA-7x5q-8f6h-rjrc
References
Other 2
More conductor-oss vulnerabilities
- TI-2026-71644 conductor-oss conductor Agentspan Agent Runtime server-side request forgery CVSS 4.0MEDIUM 6.9
- TI-2026-71643 Server-side request forgery in conductor-oss Agent Card fetching CVSS 4.0MEDIUM 6.9
- TI-2026-71638 Server-side request forgery in conductor-oss Conductor MCP Service CVSS 4.0MEDIUM 5.3
- TI-2026-71645 Server-side request forgery in conductor-oss Conductor Kafka task CVSS 4.0MEDIUM 6.9
- TI-2026-71637 Server-side request forgery in conductor-oss Conductor API tools CVSS 4.0MEDIUM 5.3
Sources
- CVE-2026-58138 · CVE Program
- CVE-2026-58138 · NVD
- FIRST EPSS
- GHSA-7x5q-8f6h-rjrc · GitHub Advisory Database · CC BY 4.0
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