# CVE-2026-111929: Coder provisioner daemon authorization bypass in DownloadFile

Source: https://junglewise.ai/threats/cve-2026-111929-coder-from-2-30-0-before-2-34-8-contains-an-authorization-bypass  
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-2026-111929 · Severity: medium · CVSS 5.3 · Published 2026-10-17

Coder is infrastructure-as-code provisioning software used to manage development environments and resources. An authorization flaw in the provisioner daemon allows authenticated users with the correct credential and knowledge of specific file identifiers to access Terraform module archives from other organizations, potentially exposing infrastructure secrets and topology details.

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

## Quick answers

**Is CVE-2026-111929 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111929 being exploited in the wild.

**How severe is CVE-2026-111929?** Medium severity, with a CVSS score of 5.3, published 17 October 2026.

**Which products and versions are affected?** Coder 2.30.0 before 2.34.8.

**Is there a fix for CVE-2026-111929?** Yes: fixed in 2.34.8, 2.35.0, 2.36.0. Until then: Operators who do not use external provisioner daemons or multi-organization deployments are not affected by this vulnerability and do not require immediate remediation. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-111929 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-111929?** 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

Operators who do not use external provisioner daemons or multi-organization deployments are not affected by this vulnerability and do not require immediate remediation.

## Technical details

The DownloadFile gRPC handler in the provisioner daemon server performs insufficient authorization checks when retrieving cached Terraform module archives from the database. It validates only that files have CreatedBy set to nil UUID and MIME type application/x-tar, but does not verify that the requesting provisioner's organization matches the target file's organization. An authenticated provisioner daemon with an org-scoped key can download any organization's cached modules if the file UUID is known; UUIDs are random but can be discovered through side-channel methods or prior access.

## Affected products

- Coder Coder 2.30.0 before 2.34.8

## Timeline

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

## References

- [https://github.com/coder/coder/security/advisories/GHSA-hrhj-hpwc-9hmc](https://github.com/coder/coder/security/advisories/GHSA-hrhj-hpwc-9hmc)
- [https://www.vulncheck.com/advisories/coder-2.30.0-before-2.34.8-cross-organization-file-disclosure-via-downloadfile-rpc](https://www.vulncheck.com/advisories/coder-2.30.0-before-2.34.8-cross-organization-file-disclosure-via-downloadfile-rpc)

## Related threats

- [Coder AI Gateway encoded path traversal](https://junglewise.ai/threats/cve-2026-121967-coder-2-28-0-before-2-29-22-2-30-0-before-2-34-13-2-35-0-before)
- [Coder missing audience validation in GCP instance-identity endpoint](https://junglewise.ai/threats/cve-2026-118687-coder-before-2-29-21-2-30-0-before-2-34-12-2-35-0-before-2-35-9)
- [Coder open redirect in workspace app proxy](https://junglewise.ai/threats/cve-2026-111931-coder-from-2-0-0-before-2-34-8-contains-an-open-redirect)
- [Coder workspace ACL endpoint authorization bypass](https://junglewise.ai/threats/cve-2026-111930-coder-from-2-26-0-before-2-34-8-contains-an-incorrect)
- [Coder authorization bypass in RBAC policy ACL evaluation](https://junglewise.ai/threats/cve-2026-111928-coder-from-2-0-0-before-2-34-8-contains-an-incorrect)