# CVE-2026-100563: OpenClaw before 2026.8.1 CSV Formula Injection via Session Labels

> Attackers can inject malicious formulas into CSV exports via session labels, potentially executing code when operators open the file in spreadsheet software.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **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:** Yes
- **Published:** 26 Sep 2026
- **Updated:** 5 Oct 2026
- **Also known as:** GHSA-79w7-46j2-phwg, GHSA-xx9p-hc9w-6p5h, MINI-jxh5-7vmw-9fx6

## What is CVE-2026-100563?

CVE-2026-100563 is a medium-severity vulnerability in OpenClaw, published on 26 Sep 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

OpenClaw (npm package `openclaw`) before 2026.8.1 does not neutralize leading characters that spreadsheet applications interpret as formulas when the Control UI exports session data to CSV. Although session labels were quoted as CSV text, a lower-trust participant who can influence a session label or the first user message can place a formula-like cell in the Usage export; if an operator opens that export in a spreadsheet application with formula evaluation enabled, the cell may be evaluated with the permissions of the spreadsheet user. OpenClaw itself does not evaluate the formula, and practical impact depends on the spreadsheet application's security settings. The issue is fixed in 2026.8.1.

Weakness: CWE-1236 (Improper Neutralization of Formula Elements in a CSV File)

## Which versions are affected by CVE-2026-100563?


## How do I fix CVE-2026-100563?

Upgrade to a fixed version.

## Is CVE-2026-100563 being exploited?

There is no known exploitation of CVE-2026-100563 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-100563 and fix it if it is affected.

What it is: CVE-2026-100563 is a medium-severity vulnerability in OpenClaw, published on 26 Sep 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: There is no known exploitation of CVE-2026-100563 in the wild and no public exploit code.

Affected product: OpenClaw. 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-2026-100563/ (Markdown: https://insights.sbomify.com/CVE-2026-100563/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-100563
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-100563
- OSV: https://osv.dev/vulnerability/CVE-2026-100563

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-100563/
Summaries are generated and may contain mistakes; the official description above is the record.