# CVE-2026-20755: Privilege escalation in LLM Scaler software

> An unprivileged local attacker can escalate privileges in LLM Scaler software due to a protection mechanism failure, requiring passive user interaction.

- **Severity:** Medium 5.4 (`CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Aug 2026
- **Updated:** 12 Aug 2026
- **Also known as:** GHSA-w335-vfh3-52g2

## What is CVE-2026-20755?

CVE-2026-20755 is a medium-severity vulnerability in LLM Scaler software, published on 11 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Protection mechanism failure for some LLM Scaler software within Ring 3: User Applications may allow an escalation of privilege. Unprivileged software adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires passive user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

Weakness: CWE-693 (Protection Mechanism Failure)

## Which versions are affected by CVE-2026-20755?


## How do I fix CVE-2026-20755?

No fix has been published for CVE-2026-20755 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-20755 being exploited?

There is no known exploitation of CVE-2026-20755 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-20755 and fix it if it is affected.

What it is: CVE-2026-20755 is a medium-severity vulnerability in LLM Scaler software, published on 11 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-20755 in the wild and no public exploit code.

Affected product: LLM Scaler software. 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-2026-20755/ (Markdown: https://insights.sbomify.com/CVE-2026-20755/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-20755
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-20755
- OSV: https://osv.dev/vulnerability/CVE-2026-20755

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-20755/
Summaries are generated and may contain mistakes; the official description above is the record.