# CVE-2026-30953: LinkAce affected by SSRF via link creation: NoPrivateIpRule not applied to LinkStoreRequest

> Attackers can exploit missing IP validation in LinkAce to perform Server-Side Request Forgery, accessing internal network resources and cloud metadata.

- **Severity:** High 7.7 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Mar 2026
- **Updated:** 11 Mar 2026
- **Also known as:** GHSA-f2mp-q78r-7jx7

## What is CVE-2026-30953?

CVE-2026-30953 is a high-severity server-side request forgery vulnerability in Kovah LinkAce, published on 10 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

LinkAce is a self-hosted archive to collect website links. When a user creates a link via POST /links, the server fetches HTML metadata from the provided URL (LinkRepository::create() calls HtmlMeta::getFromUrl()). The LinkStoreRequest validation rules do not include NoPrivateIpRule, allowing server-side requests to internal network addresses, Docker service hostnames, and cloud metadata endpoints. The project already has a NoPrivateIpRule class (app/Rules/NoPrivateIpRule.php) but it is only applied in FetchController.php (line 99), not in the primary link creation path.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-30953?

It affects 1 product.


Products: Linkace Linkace.

## How do I fix CVE-2026-30953?

No fix has been published for CVE-2026-30953 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30953 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30953 exists.

## Other vulnerabilities in Kovah LinkAce

- [CVE-2026-27458](https://insights.sbomify.com/CVE-2026-27458/): LinkAce: Stored XSS in Atom Feed via CDATA Escape in List Description (high 8.7)
- [CVE-2025-62722](https://insights.sbomify.com/CVE-2025-62722/): LinkAce: Stored XSS Vulnerability in Link Title Field Through Social Media Sharing Feature (high 8.7)
- [CVE-2026-33953](https://insights.sbomify.com/CVE-2026-33953/): LinkAce's SSRF protection can be bypassed via internal hostname resolution in LinkAce (high 8.5)
- [CVE-2025-53838](https://insights.sbomify.com/CVE-2025-53838/): LinkAce has a Stored One Click XSS vulnerability (high 8.4)
- [CVE-2024-56508](https://insights.sbomify.com/CVE-2024-56508/): File Upload Vulnerability Leading to XSS in LinkAce v1.15.5 (high 7.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-30953 and fix it if it is affected.

What it is: CVE-2026-30953 is a high-severity server-side request forgery vulnerability in Kovah LinkAce, published on 10 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30953 exists.

Affected product: Kovah LinkAce. 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-2026-30953/ (Markdown: https://insights.sbomify.com/CVE-2026-30953/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30953
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30953
- OSV: https://osv.dev/vulnerability/CVE-2026-30953

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-30953/
Summaries are generated and may contain mistakes; the official description above is the record.