CVE-2026-105640: critical vulnerability in makeplane plane
Plane: Account Takeover via Unverified OAuth Email Match (Gitea, self-managed GitLab)
Published
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 0.4%
exploitation probability
0.4%top 70% of all CVEs
observed exploitation
nono source reports it
Plane is an open-source project management tool. Prior to 1.4.0, Plane trusts email addresses returned by Gitea OAuth and by self-managed GitLab OAuth deployments where email confirmation is disabled, without verifying that the provider authenticated ownership of the address. An attacker can set an OAuth identity's unverified provider email to a victim's address, which Plane matches directly to the victim's existing local account. The attacker can then log in to the victim's Plane account without knowing the victim's password. GitHub, GitLab.com, and Google are not affected because those providers return verified email addresses. This issue is fixed in 1.4.0.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products
makeplane · planeRelated CVEs — makeplane plane
In the same product, most dangerous first.
CVE-2024-31461CRITICALPlane Server-Side Request Forgery (SSRF) VulnerabilityEPSS 0.7%CVE-2024-47830CRITICALPlane allows server side request forgery via /_next/image endpointEPSS 0.6%CVE-2026-104974HIGHPlane: Disabled User Auto-Reactivation on LoginEPSS 0.5%CVE-2026-105641CRITICALPlane: Hardcoded SECRET_KEY and LIVE_SERVER_SECRET_KEY shipped in aio/cli community deployment manifests — session forgery and live-server auth bypassEPSS 0.5%CVE-2026-105635HIGHPlane: Unauthenticated Project Invitation Email Disclosure Enables Unauthorized Project Join Without TokenEPSS 0.4%CVE-2026-30244HIGHPlane: Unauthenticated Workspace Member Information DisclosureEPSS 0.4%