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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Rill Data rill unaffected
Version Status Constraints
0.77.0 affected ≤ 0.90.5

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/rilldata/rill cve-icon cve-icon
https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/handlers.go#L650-L697 cve-icon cve-icon
https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/mcp_oauth.go#L77-L153 cve-icon cve-icon
https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/pkce.go#L173-L214 cve-icon cve-icon
https://hackmd.io/@haind03/rill-oauth-open-registration-long-lived-token cve-icon cve-icon
https://www.vulncheck.com/advisories/rill-0.77.0-through-0.90.5-oauth-missing-authorization-via-dynamic-client-registration cve-icon cve-icon
History

Sun, 11 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
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.
Title Rill 0.77.0 through 0.90.5 OAuth Missing Authorization via Dynamic Client Registration
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.6, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-11T12:19:30.004Z

Reserved: 2026-10-11T01:52:16.678Z

Link: CVE-2026-108718

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-11T13:17:15.020

Modified: 2026-10-11T13:17:15.020

Link: CVE-2026-108718

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-11T13:30:19Z

Weaknesses