CVE-2026-81101CWE-200information-disclosure

CVE-2026-81101

Medium · published August 27, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
37.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0
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
EPSS
0.00446 · 37.8th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2026-08-27T21:20Z
References (3)
EPSS history
Timeline
  • 27 AUG 14:50Z
    Airtable MCP CLI before 0.2.5 Credential Disclosure via Unvalidated Configured Endpoint
    cvelistv5