Unrated severityNVD Advisory· Published Jun 30, 2026· Updated Jul 14, 2026
Orkes Conductor 3.21.21 < 3.30.2 Unauthenticated RCE via GraalVM Script Evaluators
CVE-2026-58138
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.
Affected products
1Patches
Vulnerability mechanics
References
5- github.com/conductor-oss/conductor/commit/87a7d96aabbb706d6e84f812b93da5165028d18fmitrepatch
- github.com/conductor-oss/conductor/commit/c691e35e768caeb802c9f06ecdd9674c80081af1mitrepatch
- www.vulncheck.com/advisories/orkes-conductor-unauthenticated-rce-via-graalvm-script-evaluatorsmitrethird-party-advisory
- github.com/conductor-oss/conductor/releases/tag/v3.30.2mitrerelease-notes
- www.cve.org/CVERecordmitre
News mentions
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