cvedb.io
CVE-2026-43886
HIGH · CVSS 8.2
EPSS exploitation probability: 0%
Published 2026-05-11T22:22:13.350 · Last modified 2026-06-17T10:50:01.767

Summary

Outline is a service that allows for collaborative documentation. From 0.84.0 to 1.6.1, a logic error in OAuthInterface.validateScope() uses Array.some() to validate requested OAuth scopes, causing the function to accept the entire scope array if any single scope is valid. An attacker can smuggle the wildcard * scope by requesting scope=read *, escalating a read-only OAuth token to full unrestricted API access including write, delete, and admin operations. This vulnerability is fixed in 1.7.0.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.