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CVE-2026-58138

See advisory•CRITICAL · CVSS 9.8• In the wild

What is CVE-2026-58138?

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.

CVSS9.8 NVD 3.1
SeverityCRITICAL
Exploitation In the wild
EPSS9% · P95
Triage statusActive Exploit
ActionPatch within 48 hours
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWECWE-94
NVD published2026-06-30
NVD last modified2026-10-25

Timeline

  • 2026-06-30Published to the U.S. National Vulnerability Database (NVD)
  • 2026-09-20First covered in a defend.network daily briefing
  • 2026-10-25NVD record last updated

Affected product

See advisory

Remediation Steps

  1. Apply the vendor security update for Orkes Conductor as a priority.
  2. Restrict network exposure of the affected service to trusted sources until patched.
  3. Review logs and detections for indicators of exploitation.
  4. Confirm fixed versions against the official vendor advisory before deploying.

References

Referenced in our briefings & reports

Related vulnerabilities

Browse all tracked CVEs in the defend.network CVE database →

🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.