---
title: "CVE-2026-108718: Rill - Broken Access Control"
description: "Rill 0.77.0 through 0.90.5 contains a broken access control vulnerability caused by missing authorization in the admin OAuth server, letting attackers obtain non-expiring API tokens with full user permissions, exploit requires user interaction."
url: https://panop.io/threat-heartbeat/CVE-2026-108718/
---

# CVE-2026-108718 Rill - Broken Access Control

Rill 0.77.0 through 0.90.5 contains a broken access control vulnerability caused by missing authorization in the admin OAuth server, letting attackers obtain non-expiring API tokens with full user permissions, exploit requires user interaction.

CVSS base score 8.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.27% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-108718)

## Details

Type

Broken Access Control

Impact

Broken Access Control

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Published

11 October 2026

Updated

15 October 2026

Weakness

[CWE-862](https://cwe.mitre.org/data/definitions/862.html)

## Vendor fix

Update to a version later than 0.90.5 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-108718](https://nvd.nist.gov/vuln/detail/CVE-2026-108718)
- [https://www.vulncheck.com/advisories/rill-0.77.0-through-0.90.5-oauth-missing-authorization-via-dynamic-client-registration](https://www.vulncheck.com/advisories/rill-0.77.0-through-0.90.5-oauth-missing-authorization-via-dynamic-client-registration)
- [https://github.com/rilldata/rill](https://github.com/rilldata/rill)
- [https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/handlers.go#L650-L697](https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/handlers.go#L650-L697)
- [https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/mcp\_oauth.go#L77-L153](https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/mcp_oauth.go#L77-L153)
- [https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/pkce.go#L173-L214](https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/pkce.go#L173-L214)
- [https://hackmd.io/@haind03/rill-oauth-open-registration-long-lived-token](https://hackmd.io/@haind03/rill-oauth-open-registration-long-lived-token)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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