PatchTheCVECVE-2026-87940: Use of Web Browser Cache Containing Sensitive Information vulnerability in Drupal Key auth allows Exploiting I
21
Routine
MEDIUM 5.4
CVE-2026-87940 is a medium-severity flaw (CVSS 5.4) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 5.4 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 93%) |
| CISA exploited list | No |
| Weakness | CWE-525 |
| Published | 2026-10-22 |
| Last modified | 2026-10-22 |
Publisher (CNA): Drupal.org
Timeline
- Published CVE record published
- Updated Record last modified
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Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.