# CVE-2026-111928: Coder authorization bypass in RBAC policy ACL evaluation

Source: https://junglewise.ai/threats/cve-2026-111928-coder-from-2-0-0-before-2-34-8-contains-an-incorrect  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-17. Updated: 2026-10-17  
License: CC BY 4.0 with a link back

CVE-2026-111928 · Severity: medium · CVSS 5.4 · Published 2026-10-17

Coder is a platform that provides remote development environments and workspaces accessible through web and API interfaces. A flaw in its authorization system allows users who were removed from an organization to retain access to templates and workspaces they previously had permission to use, potentially exposing sensitive development resources. This affects multi-organization deployments where administrators grant per-user access permissions to organization-scoped resources.

Technologies: [Coder](https://junglewise.ai/threats/technologies/coder). Vendors: [Coder](https://junglewise.ai/threats/vendors/coder).

## Quick answers

**Is CVE-2026-111928 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111928 being exploited in the wild.

**How severe is CVE-2026-111928?** Medium severity, with a CVSS score of 5.4, published 17 October 2026.

**Which products and versions are affected?** Coder 2.0.0 before 2.34.8.

**Is there a fix for CVE-2026-111928?** Yes: fixed in 2.34.8, 2.35.0, 2.36.0. Until then: Administrators can immediately mitigate this issue by manually revoking user-level ACL entries on organization-scoped resources before removing a user from an organization. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-111928 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-111928?** Check whether you run Coder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2.34.8, 2.35.0, 2.36.0

Administrators can immediately mitigate this issue by manually revoking user-level ACL entries on organization-scoped resources before removing a user from an organization.

## Technical details

The RBAC policy engine in coderd/rbac/policy.rego fails to verify current organization membership when evaluating user-level ACL entries on organization-scoped resources, unlike the corresponding group-level ACL rule which performs this check. Additionally, removing a member from an organization does not delete stale per-user ACL entries they held on org-scoped resources. An authenticated attacker (user who was previously in the organization) can exploit this by calling the API with a stale user-level ACL entry to access templates and workspaces after removal from the organization.

## Affected products

- Coder Coder 2.0.0 before 2.34.8

## Timeline

- 2026-08-10: disclosed
- 2026-10-17: advisory

## References

- [https://github.com/coder/coder/security/advisories/GHSA-7v78-w67v-pm2g](https://github.com/coder/coder/security/advisories/GHSA-7v78-w67v-pm2g)
- [https://www.vulncheck.com/advisories/coder-2.0.0-before-2.34.8-authorization-bypass-via-user-level-acl-in-rbac-policy](https://www.vulncheck.com/advisories/coder-2.0.0-before-2.34.8-authorization-bypass-via-user-level-acl-in-rbac-policy)

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