# CVE-2026-106931: EG Secure Solutions SiteGuard Server Edition OS Command Injection

> An OS command injection flaw in SiteGuard Server Edition allows attackers to execute arbitrary commands with root or SYSTEM privileges.

- **Severity:** High 8.5 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Yes, since 20 Oct 2026 (CISA KEV)
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Oct 2026
- **Updated:** 21 Oct 2026
- **Also known as:** GHSA-rhmj-5mp2-rq7c

## What is CVE-2026-106931?

CVE-2026-106931 is a high-severity command injection vulnerability in SiteGuard Server Edition for Apache httpd, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

SiteGuard Server Edition contains an OS command injection vulnerability, which may allow an attacker to execute arbitrary OS commands with root or SYSTEM privileges on the system running the affected product.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2026-106931?

It affects 1 product.


Products: E-Guardian Siteguard.

## How do I fix CVE-2026-106931?

No fix has been published for CVE-2026-106931 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 23 Oct 2026.

## Is CVE-2026-106931 being exploited?

Yes. Attackers have exploited CVE-2026-106931 in the wild since at least 20 Oct 2026.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-106931 and fix it if it is affected.

What it is: CVE-2026-106931 is a high-severity command injection vulnerability in SiteGuard Server Edition for Apache httpd, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2026-106931 in the wild since at least 20 Oct 2026.

Affected product: SiteGuard Server Edition for Apache httpd. 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-2026-106931/ (Markdown: https://insights.sbomify.com/CVE-2026-106931/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-106931
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-106931
- OSV: https://osv.dev/vulnerability/CVE-2026-106931

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-106931/
Summaries are generated and may contain mistakes; the official description above is the record.