[ CVE-2026-121735 · Published 3 Nov 2026 ]
Vulnerability in blueprintue-self-hosted-edition
CVSS 3.7
EPSS <1%No fix listed yet
[ Description ]Official description
blueprintUE self-hosted edition before 4.3.4 contains an insufficient session expiration vulnerability that allows attackers to confirm accounts using stale tokens because UserModel::findUserIDWithConfirmedToken ignores confirmed_sent_at. Attackers who obtain an old confirmation link from a compromised mailbox, backup, or forwarded mail can activate unconfirmed accounts and evade the unconfirmed-account cleanup job.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/blueprintue/blueprintue-self-hosted-edition
- github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.3/app/models/UserModel…
- github.com/blueprintue/blueprintue-self-hosted-edition/commit/8bba1615bf76b144ac5cd7263…
- github.com/blueprintue/blueprintue-self-hosted-edition/pull/266
- github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.4
- github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-qp6g-7v…
- www.vulncheck.com/advisories/blueprintue-self-hosted-edition-before-4.3.4-non-expiring-…