Quick answers
- Is CVE-2026-105635 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-105635 being exploited in the wild.
- How severe is CVE-2026-105635?
- High severity, with a CVSS score of 7.4, published 5 October 2026.
- Which products and versions are affected?
- Plane before 1.4.0.
- Is there a fix for CVE-2026-105635?
- 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-2026-105635 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-105635?
- Check whether you run 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 GET /api/workspaces/{slug}/projects/{project_id}/join/{pk}/ endpoint used AllowAny permissions and returned the full ProjectMemberInvite record including email and token to unauthenticated callers. The corresponding POST endpoint failed to validate the invitation token, checking only email match, allowing an attacker who knew the invitation UUID to register with the target email and accept the invitation.
Affected products
- Plane Plane before 1.4.0
Timeline
- 2026-10-05: disclosed