VULNERABILITY INTELLIGENCE

CVE-2026-80255

CVSS score7.5 HIGH
EPSS probability0.48%
CISA KEVNot currently listed
Published2026-09-06
Last modified2026-09-15
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

A `Set-Cookie:` header using tab (horizontal tab, ASCII code 9) instead of space (ascii code 32) immediately before the `Secure` attribute causes curl to store the cookie without its Secure flag. The cookie might then wrongfully be sent over plaintext HTTP on subsequent requests to the same host.

Weakness classification

  • 2499f714-1537-4658-8207-48ae4bb9eae9: CWE-201
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-201

Primary references