CVE-2026-105849

Payload vulnerable to API key disclosure through ordinary document reads

Workarounds

Disable useAPIKey or restrict users to reading only their own authentication document. Rotate any API key that may have been exposed.

Users with read access to other user documents could access their active API keys. An exposed key grants the target account’s permissions until rotated or disabled.

You are affected if:

• An authentication collection enables useAPIKey.
• Users have read access to other user documents containing active API keys.

The application does not perform an authorization check before performing a sensitive operation. Typical impact: unauthorized access to restricted functionality or data.

Kodem intelligence

Already deployed Kodem?

Users should upgrade payload packages to >= 3.90.0 or >= 4.0.0-canary.34.

1. What is CVE-2026-105849? CVE-2026-105849 is a high-severity missing authorization vulnerability in payload (npm), affecting versions >= 3.0.0, < 3.90.0. It is fixed in 3.90.0, 4.0.0-canary.34. The application does not perform an authorization check before performing a sensitive operation.
2. Which versions of payload are affected by CVE-2026-105849? payload (npm) versions >= 3.0.0, < 3.90.0 is affected.
3. Is there a fix for CVE-2026-105849? Yes. CVE-2026-105849 is fixed in 3.90.0, 4.0.0-canary.34. Upgrade to this version or later.
4. Is CVE-2026-105849 exploitable, and should I be worried? Whether CVE-2026-105849 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
5. What actually determines whether CVE-2026-105849 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
6. How do I fix CVE-2026-105849?
   • Upgrade payload to 3.90.0 or later
   • Upgrade payload to 4.0.0-canary.34 or later

Other vulnerabilities in payload