# CVE-2026-81101: Airtable MCP CLI before 0.2.5 Credential Disclosure via Unvalidated Configured Endpoint

> Attackers can steal user access tokens by tricking them into configuring a malicious endpoint, as the CLI fails to validate the URL before sending credentials.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/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:** No
- **Published:** 27 Aug 2026
- **Updated:** 29 Aug 2026
- **Also known as:** GHSA-qxwr-hgm6-9xxf

## What is CVE-2026-81101?

CVE-2026-81101 is a medium-severity vulnerability in airtable-mcp-cli, published on 27 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

The configure command accepted any endpoint URL and stored it beside the user's access token. ConfigureCommand.execute in src/cli.ts persisted the value given to its endpoint option into the user profile without passing it through createSafeUrl in src/config.ts, the helper that already restricted the environment-variable form of the same setting to the vendor's own hosts over HTTPS. Because the connect path in src/mcp.ts attaches the stored token as a bearer credential on every request to the configured endpoint, a user who was persuaded to run configure with an endpoint of the attacker's choosing sent their personal access token to that destination on each subsequent invocation. Version 0.2.5 applies the same helper to the option.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-81101?


## How do I fix CVE-2026-81101?

No fix has been published for CVE-2026-81101 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-81101 being exploited?

There is no known exploitation of CVE-2026-81101 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-81101 and fix it if it is affected.

What it is: CVE-2026-81101 is a medium-severity vulnerability in airtable-mcp-cli, published on 27 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: There is no known exploitation of CVE-2026-81101 in the wild and no public exploit code.

Affected product: airtable-mcp-cli. 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-2026-81101/ (Markdown: https://insights.sbomify.com/CVE-2026-81101/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-81101
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-81101
- OSV: https://osv.dev/vulnerability/CVE-2026-81101

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-81101/
Summaries are generated and may contain mistakes; the official description above is the record.