CVE-2026-87863: HSTS response erases persisted entries
Overview
- Severity
- Medium (CVSS 6.1)
- CVSS Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L/E:U
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Oct
- Released
- 2026-10-23
- EPSS Score
- 0.29% (percentile: 20.5%)
Affected Products (4)
Other
- 21862-17084
- 21840-17084
- 21918-17084
- 21021-17084
Revision History
- 2026-10-23: Information published.