# CVE-2026-104892: Plane API token logging plaintext exposure

Source: https://junglewise.ai/threats/cve-2026-104892-plane-is-an-open-source-project-management-tool-prior-to-1-4-0  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-05. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-104892 · Severity: info · Published 2026-10-05

Plane is an open-source project management tool that stores and manages API tokens for authentication. Prior to version 1.4.0, the logging middleware recorded API keys in plaintext, allowing low-privilege users or anyone with access to logs to steal API credentials and impersonate other users or escalate privileges. This issue is fixed in version 1.4.0.

Technologies: [Makeplane Plane](https://junglewise.ai/threats/technologies/plane). Vendors: [Makeplane](https://junglewise.ai/threats/vendors/makeplane).

## Quick answers

**Is CVE-2026-104892 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-104892 being exploited in the wild.

**How severe is CVE-2026-104892?** Informational severity, published 5 October 2026.

**Which products and versions are affected?** Makeplane Plane before 1.4.0.

**Is there a fix for CVE-2026-104892?** Yes: fixed in 1.4.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-104892 attacked?** It is attacked with local access or from the adjacent network, in a software library.

**Am I affected by CVE-2026-104892?** Check whether you run Makeplane Plane 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 1.4.0

## Technical details

The APITokenLogMiddleware in Plane prior to 1.4.0 logged API keys in plaintext to the database. An attacker with low privileges and access to application logs could extract these API keys. The fix replaces plaintext logging with HMAC-SHA256 hashing of tokens and redacts sensitive headers (X-Api-Key, Authorization, Cookie) from logs.

## Affected products

- Makeplane Plane before 1.4.0

## Timeline

- 2026-10-05: disclosed
- 2026-05-27: patched

## References

- [https://github.com/makeplane/plane/commit/edf247541301e482f2688c63481464b671ec579d](https://github.com/makeplane/plane/commit/edf247541301e482f2688c63481464b671ec579d)
- [https://github.com/makeplane/plane/pull/9148](https://github.com/makeplane/plane/pull/9148)

## Related threats

- [makeplane plane rate limit bypass via X-Forwarded-For header](https://junglewise.ai/threats/cve-2026-111869-a-vulnerability-was-identified-in-makeplane-plane-up-to-1-4-2)
- [Plane account takeover via unverified OAuth email](https://junglewise.ai/threats/cve-2026-105640-plane-is-an-open-source-project-management-tool-prior-to-1-4-0)
- [Plane project management asset IDOR in bulk-asset endpoint](https://junglewise.ai/threats/cve-2026-105637-plane-is-an-open-source-project-management-tool-prior-to-1-4-0)
- [Plane privilege escalation in project member role updates](https://junglewise.ai/threats/cve-2026-105634-plane-is-an-open-source-project-management-tool-prior-to-1-3-0)
- [Plane project management tool asset access control bypass](https://junglewise.ai/threats/cve-2026-105631-plane-is-an-open-source-project-management-tool-prior-to-1-4-0)