# CVE-2025-34143: ETQ Reliance CG Authentication Bypass via Trailing Space RCE

> Attackers can bypass authentication to access the SYSTEM account and achieve remote code execution by modifying Jython scripts in ETQ Reliance CG.

- **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:** 22 Jul 2025
- **Updated:** 15 May 2026
- **Also known as:** GHSA-v93r-q3gh-68x8

## What is CVE-2025-34143?

CVE-2025-34143 is a critical authentication bypass vulnerability in ETQ Reliance CG (legacy), published on 22 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An authentication bypass vulnerability exists in ETQ Reliance on the CG (legacy) platform. The application allowed login as the privileged internal SYSTEM user by manipulating the username field. The SYSTEM account does not require a password, enabling attackers with network access to the login page to obtain elevated access. Once authenticated, an attacker could achieve remote code execution by modifying Jython scripts within the application. This issue was resolved by introducing stricter validation logic to exclude internal accounts from public authentication workflows in version MP-4583.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-288 (Authentication Bypass Using an Alternate Path or Channel), CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2025-34143?


## How do I fix CVE-2025-34143?

No fix has been published for CVE-2025-34143 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34143 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34143 exists.

Public exploit code:

- ETQ Reliance - Authentication Bypass via Trailing Space (nuclei): http/cves/2025/CVE-2025-34143.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34143 and fix it if it is affected.

What it is: CVE-2025-34143 is a critical authentication bypass vulnerability in ETQ Reliance CG (legacy), published on 22 Jul 2025. 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-2025-34143 exists.

Affected product: ETQ Reliance CG (legacy). 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-2025-34143/ (Markdown: https://insights.sbomify.com/CVE-2025-34143/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34143
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34143
- OSV: https://osv.dev/vulnerability/CVE-2025-34143

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34143/
Summaries are generated and may contain mistakes; the official description above is the record.