Login-form access via stale cached response
Published Sep 2, 2026 · Updated Sep 2, 2026
Authentication bypass in Drupal Disable Login Page before 1.1.4 allows remote attackers to access the restricted login form. Enabling the restriction does not invalidate relevant cache entries, so an earlier cached /user/login response remains reachable until cache clearance. The bypass requires the login page to have been cached before an administrator enables the restriction; it exposes the form but does not itself grant account access.
Summary
What happened
Authentication bypass in Drupal Disable Login Page before 1.1.4 allows remote attackers to access the restricted login form. Enabling the restriction does not invalidate relevant cache entries, so an earlier cached /user/login response remains reachable until cache clearance. The bypass requires the login page to have been cached before an administrator enables the restriction; it exposes the form but does not itself grant account access.
The record
- CVE
- CVE-2026-16647
- Published
- Sep 2, 2026
- Updated
- Sep 2, 2026
- Vendor
- OAuth.js
- Product
- Disable Login Page
- Classifications
- CWE-288, CAPEC-554
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 2, 2026CVE publishedPublication date reported by the CVE source.
- Sep 2, 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.
- Affected versionversion=0.0.0 <1.1.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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