What is CVE-2026-105641?

CVE-2026-105641 is a critical-severity vulnerability in Makeplane Plane, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2026-10-05.

How severe is CVE-2026-105641?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Makeplane Plane

CVE-2026-105641

Plane is an open-source project management tool. Prior to 1.4.0, the deployments/aio/community/ and deployments/cli/community/ manifests provide fixed, publicly known SECRET_KEY and LIVE_SERVER_SECRET_KEY defaults that remain active when operators do not override them. The top-level setup.sh randomizes secrets only for the development Docker Compose path, leaving unchanged aio and cli community deployments with shared production secrets. Knowledge of SECRET_KEY enables attackers to forge Django-signed values and compromise accounts or sessions. Knowledge of LIVE_SERVER_SECRET_KEY bypasses live-service authentication on unchanged community deployments. This issue is fixed in 1.4.0.

Published 2026-10-05 · last modified 2026-10-05.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Makeplane Plane — versions < 1.4.0

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

Frequently asked questions

What is CVE-2026-105641?: CVE-2026-105641 is a critical-severity vulnerability in Makeplane Plane, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2026-10-05.
How severe is CVE-2026-105641?: Critical severity. CVSS v3 base score is 9.8 out of 10.