CVE-2026-58138
Orkes Conductor 3.21.21 < 3.30.2 Unauthenticated RCE via GraalVM Script Evaluators
Exploitation likely. EPSS gives it a 15% chance of exploitation in the next 30 days. No fix published yet.
What to do
No fixed build or workaround is published yet. Limit exposure and watch for a patch.
Steps
Written by AI from the record- Check whether you run Conductor and identify its installed version.
- Upgrade Conductor to version 3.30.2.
- Until upgraded, restrict access to the workflow API to trusted internal systems.
- Review recent workflow submissions for unfamiliar scripts or commands.
What it is
From the CVE record
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.
In plain language
Written by AI from the recordOrkes Conductor versions 3.21.21 through before 3.30.2 can let an outsider take over the server, so small businesses using it should act now.
Unauthenticated RCE in Orkes Conductor through unsandboxed GraalVM JavaScript or Python evaluators embedded in workflow definitions submitted to the workflow API.
If you're affected
- Full server takeover
- Workflow tampering
- Data exposure
- Service disruption
- Ransomware risk
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
15% chance of exploitation activity in the next 30 days, which ranks it in the 97th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
- Attention now
Sustained.
Lifecycle
9 events over 88 days, from the signal feeds we watch.
- Analysis publishedA Single Unauthenticated POST Gets Root on Orkes Conductor. Fortinet Blocked 7,000 Attempts Trying It Last Week.
- EPSS band changelow → moderateepss band change
- Nuclei check added
- Record updated
- Record updated
- Publishedweakness classified, att&ck mapped
Affected products
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Scored 9.8 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
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