# CVE-2026-109432: Camunda Expression Injection via orQueries RCE

> Authenticated attackers can inject JUEL expressions in orQueries to execute arbitrary OS commands, bypassing expression restrictions in Camunda.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Oct 2026
- **Updated:** 19 Oct 2026
- **Also known as:** GHSA-mqfw-m4cx-w4jp

## What is CVE-2026-109432?

CVE-2026-109432 is a critical code injection vulnerability in Camunda 7, published on 19 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Camunda 7.24.0 before 7.24.14 and 7.23.0 before 7.23.17 contains an expression injection vulnerability where AdhocQueryValidator.validate() fails to check sub-query expression maps within the orQueries field exposed by TaskQueryDto, allowing authenticated users to bypass the enableExpressionsInAdhocQueries restriction. Attackers can supply a malicious JUEL expression such as dueAfterExpression inside an orQueries entry to achieve arbitrary Java reflection and invoke java.lang.Runtime.exec, resulting in operating-system command execution as the engine service user.

Weakness: CWE-917 (Improper Neutralization of Special Elements used in an Expression Language Statement), CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2026-109432?


## How do I fix CVE-2026-109432?

No fix has been published for CVE-2026-109432 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-109432 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109432 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-109432 and fix it if it is affected.

What it is: CVE-2026-109432 is a critical code injection vulnerability in Camunda 7, published on 19 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109432 exists.

Affected product: Camunda 7. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-109432/ (Markdown: https://insights.sbomify.com/CVE-2026-109432/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-109432
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-109432
- OSV: https://osv.dev/vulnerability/CVE-2026-109432

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-109432/
Summaries are generated and may contain mistakes; the official description above is the record.