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9.1

Rill admin OAuth can issue endless tokens without consent

CVE-2026-108718 · published today
Summary

Versions 0.77.0 through 0.90.5 of Rill’s admin OAuth server let anyone register an application and receive a permanent access token without the user’s approval. This could let an attacker obtain a token that has all of a user’s permissions and use it indefinitely. Upgrade to a patched version or disable dynamic client registration until the fix is applied.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
rill data rill <= 0.90.5
Original advisory text
Rill 0.77.0 through 0.90.5 OAuth Missing Authorization via Dynamic Client Registration
Rill 0.77.0 through 0.90.5 contains a missing authorization vulnerability in the admin OAuth server that issues authorization codes to dynamically registered clients without user consent. Attackers can register a client with the long_lived_access_token scope and lure a user to an authorization link, obtaining a non-expiring API token with the user's full permissions.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
9.1 Critical
Type
CWE-862Missing Authorization
Timeline
Published11 Oct 2026
Updated12 Oct 2026
First seen11 Oct 2026
Sources
CVE-2026-108718 · NVD
CVE-2026-108718 · MITRE
CVE-2026-108718 · OSV
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