# CVE-2026-77654: Local Privilege Escalation via Misconfigured Sudoers Entry in Horizon Security Analyzer

> Local attackers can escalate privileges by abusing parameters in a misconfigured sudoers entry within Horizon Security Analyzer.

- **Severity:** Medium 6.1 (`CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:L/VI:H/VA:H/SC:H/SI:H/SA:H/S:N/AU:Y/R:U/RE:L/U:Amber`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 8 Sep 2026
- **Updated:** 8 Sep 2026
- **Also known as:** GHSA-3pwx-5g7f-2mvm

## What is CVE-2026-77654?

CVE-2026-77654 is a medium-severity vulnerability in Algosec Horizon Security Analyzer, published on 8 Sep 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

Improper Privilege Management vulnerability in Horizon Security Analyzer (formerly AlgoSec Firewall Analyzer) on Linux, 64 bit allows Privilege Escalation and Parameter Injection.

A local user with access to the command line may escalate their privileges by abusing the parameters of a command that is approved in the sudoers file. 

This issue affects Horizon Security Analyzer : A33.10, A33.20 and A33.30.

Weakness: CWE-266 (Incorrect Privilege Assignment)

## Which versions are affected by CVE-2026-77654?


## How do I fix CVE-2026-77654?

No fix has been published for CVE-2026-77654 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-77654 being exploited?

There is no known exploitation of CVE-2026-77654 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-77654 and fix it if it is affected.

What it is: CVE-2026-77654 is a medium-severity vulnerability in Algosec Horizon Security Analyzer, published on 8 Sep 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-2026-77654 in the wild and no public exploit code.

Affected product: Algosec Horizon Security Analyzer. 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-2026-77654/ (Markdown: https://insights.sbomify.com/CVE-2026-77654/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-77654
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-77654
- OSV: https://osv.dev/vulnerability/CVE-2026-77654

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-77654/
Summaries are generated and may contain mistakes; the official description above is the record.