Description
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.
References6
- github.com/rilldata/rill
- github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38…
- github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38…
- github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38…
- hackmd.io/@haind03/rill-oauth-open-registration-long-lived-token
- www.vulncheck.com/advisories/rill-0.77.0-through-0.90.5-oauth-m…
Metrics
- CVSS 3.1
-
8.1
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - CVSS 4.0
-
8.6
HIGH
Score source: CNA
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 20 · as of 11 November 2026
- CWE
- CWE-862
Could this be exploited in your environment?
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