---
title: "CVE-2025-26074: Conductor vulnerable to OS command injection through unrestricted access to Java classes"
url: https://erroneo.us/security/cve/CVE-2025-26074/
description: "CVE-2025-26074 (org.conductoross:conductor-core (Maven)): Orkes Conductor v3.21.11 allows remote attackers to execute arbitrary OS commands through…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-06-30
date_modified: 2025-06-30
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-26074"
kev: false
cvss: 9.8
epss: 0.00713
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-26074: Conductor vulnerable to OS command injection through unrestricted access to Java classes

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.7% , percentile 53: FIRST’s model estimates a 0.7% chance of exploitation activity in the next 30 days, higher than 53% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes org.conductoross:conductor-core (Maven) < 3.21.13, fixed in 3.21.13 . Check your lockfile, including transitive dependencies.

## What it is

Orkes Conductor v3.21.11 allows remote attackers to execute arbitrary OS commands through unrestricted access to Java classes.

## Affected packages

- Maven `org.conductoross:conductor-core` < 3.21.13 → fixed: 3.21.13

## Affected products (CVE record)

- n/a n/a: see advisory

## Severity

- CISA-ADP CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.71% probability of exploitation activity in the next 30 days; percentile 53.

## Sources

- [GitHub Advisory GHSA-8gqp-hr9g-pg62](https://github.com/advisories/GHSA-8gqp-hr9g-pg62)
- [CVE.org record CVE-2025-26074](https://www.cve.org/CVERecord?id=CVE-2025-26074)
- [NVD entry CVE-2025-26074](https://nvd.nist.gov/vuln/detail/CVE-2025-26074)
- [github.com](https://github.com/conductor-oss/conductor)
- [github.com](https://github.com/conductor-oss/conductor/blob/main/core/src/main/java/com/netflix/conductor/core/events/ScriptEvaluator.java)
- [medium.com](https://medium.com/@mrcnry/cve-2025-26074-remote-code-execution-in-conductor-oss-via-inline-javascript-injection-5ce3cb651cfb)
- [github.com](https://github.com/conductor-oss/conductor/commit/e9816501df1e364a3d39d7fe37d6e167c40eaa1b)

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Source page: https://erroneo.us/security/cve/CVE-2025-26074/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt