# CVE-2026-18819: RackTables cross-site request forgery

> Attackers can perform unauthorized actions on behalf of authenticated users due to missing CSRF protection in RackTables.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 4 Aug 2026
- **Updated:** 5 Aug 2026
- **Also known as:** GHSA-4q74-w4p3-c8cx

## What is CVE-2026-18819?

CVE-2026-18819 is a medium-severity vulnerability in RackTables, published on 4 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A security vulnerability has been detected in RackTables up to 0.22.0/e5fff9f8aab339798ed47e8c6d7d977ed97a82bd. This vulnerability affects unknown code. The manipulation leads to cross-site request forgery. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The project maintainer confirms: "[I]t seems plausible, in that RackTables does not at this time have any CSRF prevention. You may assign a CVE ID to this, but there is no guarantee it will be handled in urgent, or even timely, manner, or at all."

Weakness: CWE-862 (Missing Authorization), CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2026-18819?


## How do I fix CVE-2026-18819?

No fix has been published for CVE-2026-18819 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-18819 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18819 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-18819 and fix it if it is affected.

What it is: CVE-2026-18819 is a medium-severity vulnerability in RackTables, published on 4 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18819 exists.

Affected product: RackTables. 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-2026-18819/ (Markdown: https://insights.sbomify.com/CVE-2026-18819/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-18819
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-18819
- OSV: https://osv.dev/vulnerability/CVE-2026-18819

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-18819/
Summaries are generated and may contain mistakes; the official description above is the record.