CVE-2026-27886Public exploitNetwork attack vector

Administrative account takeover via relational filter oracle

Published May 14, 2026 · Updated May 14, 2026

Query-logic injection in Strapi 4.0.0 through 5.36.1 allows remote attackers to expose admin secrets through public Content API filters. The where parameter crosses restricted relations into admin_users fields, and response counts reveal whether attacker-chosen predicates match secret values. Exploitation requires a publicly readable content type linked through updatedBy or another admin relation; recovered reset tokens enable administrative account takeover.

CVSS severity9.2
Critical
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Query-logic injection in Strapi 4.0.0 through 5.36.1 allows remote attackers to expose admin secrets through public Content API filters. The where parameter crosses restricted relations into admin_users fields, and response counts reveal whether attacker-chosen predicates match secret values. Exploitation requires a publicly readable content type linked through updatedBy or another admin relation; recovered reset tokens enable administrative account takeover.

The record

CVE
CVE-2026-27886
Published
May 14, 2026
Updated
May 14, 2026
Vendor
Strapi
Product
Strapi
Classifications
CWE-22, CWE-943, CWE-200, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 14, 2026CVE publishedPublication date reported by the CVE source.
  2. May 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 4.0.0, < 5.37.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Strapi · Strapiversion=>= 4.0.0, < 5.37.0

Published CVSS scores

9.2GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-943Improper Neutralization of Special Elements in Data Query Logic
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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