CVE-2026-108718CWE-862broken-access-control

CVE-2026-108718

High · published October 11, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
18.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00271 · 18.4th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-10-11T17:17Z
References (6)
https://github.com/rilldata/rill · [email protected]https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/handlers.go#L650-L697 · [email protected]https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/mcp_oauth.go#L77-L153 · [email protected]https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/pkce.go#L173-L214 · [email protected]https://hackmd.io/@haind03/rill-oauth-open-registration-long-lived-token · [email protected]https://www.vulncheck.com/advisories/rill-0.77.0-through-0.90.5-oauth-missing-authorization-via-dynamic-client-registration · [email protected]
EPSS history
Timeline
  • 13 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 11 OCT 12:19Z
    Rill 0.77.0 through 0.90.5 OAuth Missing Authorization via Dynamic Client Registration
    cvelistv5
  • 11 OCT 12:19Z
    Rill 0.77.0 through 0.90.5 OAuth Missing Authorization via Dynamic Client Registration
    cvelistv5