Unauthenticated admin takeover via oracle attack; affects Strapi deployments with public endpoints.
CVE-2026-27886
Unauthenticated admin takeover in Strapi via unsafe query params.
Is CVE-2026-27886 being exploited?
Not confirmed. CVE-2026-27886 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 0.61% probability of exploitation in the next 30 days.
How severe is CVE-2026-27886?
CVE-2026-27886 is rated Critical with a CVSS score of 9.2. 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-2026-27886?
Yes. A fix has been recorded for CVE-2026-27886. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-27886 affect?
CVE-2026-27886 affects Strapi 4.x, Strapi 5.0–5.36.x. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-27886?
Upgrade to 5.37.0+; verify content filters; rotate credentials.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Admin tokens leaked via boolean-oracle on admin_users; full system control via public API.
Immediate action required
- affected>= 4.0.0 and < 5.37.0
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.