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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.

PUBLISHED Reserved 2026-06-29 | Published 2026-06-30 | Updated 2026-07-14 | Assigner VulnCheck




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Improper Control of Generation of Code ('Code Injection')

Product status

Default status
affected

3.21.21 (semver) before 3.30.2
affected

Credits

seqradev finder

References

github.com/conductor-oss/conductor/releases/tag/v3.30.2 (Release Notes) release-notes

github.com/...ommit/87a7d96aabbb706d6e84f812b93da5165028d18f (Patch Commit (1)) patch

github.com/...ommit/c691e35e768caeb802c9f06ecdd9674c80081af1 (Patch Commit (2)) patch

www.cve.org/CVERecord?id=CVE-2025-26074 (Related CVE)

www.vulncheck.com/...cated-rce-via-graalvm-script-evaluators third-party-advisory

cve.org (CVE-2026-58138)

nvd.nist.gov (CVE-2026-58138)

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