CVE-2026-48087
Registration flaw lets attacker add passkey to victim account, enabling account takeover.
Is CVE-2026-48087 being exploited?
Not confirmed. CVE-2026-48087 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 0.46% probability of exploitation in the next 30 days.
How severe is CVE-2026-48087?
CVE-2026-48087 is rated Critical with a CVSS score of 9.8. 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-2026-48087?
Yes. A fix has been recorded for CVE-2026-48087. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-48087 affect?
CVE-2026-48087 affects OpenReception < 1.0.2, OpenReception appointment booking platform, POST /api/auth/register/{userId}. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-48087?
Upgrade to v1.0.2 now; audit userId exposure and revoke suspicious passkeys.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated attacker can register a passkey for a victim account and later authenticate as that user, resulting in full account takeover.
Immediate action required
- affected< 1.0.2
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.