CVE-2026-39912
Unauthenticated token exposure enables admin bearer token.
Is CVE-2026-39912 being exploited?
Not confirmed. CVE-2026-39912 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.58% probability of exploitation in the next 30 days.
How severe is CVE-2026-39912?
CVE-2026-39912 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-39912?
Not known from our data. No patch reference has been recorded for CVE-2026-39912, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-39912 affect?
CVE-2026-39912 affects V2Board 1.6.1–1.7.4, Xboard 0.1.9. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-39912?
Patch when available or disable login_with_mail_link_enable.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated users can obtain a valid admin bearer token via token2Login, granting full account/admin access.
Immediate action required
- affected>= 1.6.1 and <= 1.7.4
- affected>= bdb10bed32c5f37df2f0872c3cb354e9b7a293bd and <= 0ca47622a50116d0ddd7ffb316b157afb57d25e8
- affected<= 0.1.9
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.