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CVE-2026-87940— Key auth - Moderately critical - Access bypass - SA-CONTRIB-2026-138

Quick assessment

Affected
Drupal Key auth
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Drupal Key Auth 模块存在“使用包含敏感信息的 Web 浏览器缓存”漏洞，该漏洞允许攻击者利用配置不当的访问控制安全级别进行攻击。此问题影响 Key Auth 模块从 0.0.0 到 2.2.4 的所有版本。

AI Predicted 5.3 Difficulty: Moderate

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-87940

Vulnerability Information
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Vulnerability Title
Key auth - Moderately critical - Access bypass - SA-CONTRIB-2026-138
Source: CVE Program / CVE List V5
Vulnerability Description
Use of Web Browser Cache Containing Sensitive Information vulnerability in Drupal Key auth allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Key auth versions: from 0.0.0 to 2.2.4.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
通过浏览器缓存导致的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Drupal Key auth 0.0.0 ~ 2.2.4 -

II. Public POCs for CVE-2026-87940

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III. Intelligence Information for CVE-2026-87940

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Other References for CVE-2026-87940 (1)

Same Patch Batch · Drupal · 2026-10-22 · 72 CVEs total

CVE-2026-96369 Webform - Less critical - Access bypass - SA-CONTRIB-2026-165
CVE-2026-96392 AI CKEditor - Moderately critical - Code execution via Twig templates - SA-CONTRIB-2026-18
CVE-2026-96388 Tawk.to - Live chat application - Critical - Cross Site Request Forgery - SA-CONTRIB-2026-
CVE-2026-96398 Webform - Less critical - Access bypass - SA-CONTRIB-2026-173
CVE-2026-96357 Webform - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-172
CVE-2026-96364 Webform - Moderately critical - Access bypass - SA-CONTRIB-2026-171
CVE-2026-96365 Webform - Less critical - Denial of service - SA-CONTRIB-2026-170
CVE-2026-96366 Webform - Moderately critical - Access bypass - SA-CONTRIB-2026-169
CVE-2026-96373 Webform - Moderately critical - Access bypass - SA-CONTRIB-2026-168
CVE-2026-96372 Webform - Moderately critical - Access bypass - SA-CONTRIB-2026-167
CVE-2026-96356 Webform - Moderately critical - Access bypass - SA-CONTRIB-2026-174
CVE-2026-96371 Webform - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-166
CVE-2026-96370 Webform - Moderately critical - Access bypass, Server-side request forgery - SA-CONTRIB-20
CVE-2026-96368 Webform - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-163
CVE-2026-96367 Webform - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-162
CVE-2026-96363 Webform - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-161
CVE-2026-96359 Webform - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-159
CVE-2026-96362 Webform - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-160
CVE-2026-96358 Webform - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-158
CVE-2026-96361 Webform - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-155

Showing top 20 of 72 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: Drupal
Same weakness: CWE-525

V. Comments for CVE-2026-87940

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