CVE-2026-121735 — Vulnerability intelligence

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Published: 2026-11-03T23:17:37.540

CVSS

6.3

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

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.

Sources

• CVE-2026-121735
• Original advisory
• Original advisory
• Original advisory
• Original advisory
• Original advisory
• Original advisory
• Original advisory