CVE-2026-80255 - secure cookie attribute bypass with tab
Brief
CVE ID : CVE-2026-80255
Published : Sept. 6, 2026, 6:17 p. m.
- 2 hours, 31 minutes ago
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.
Severity: 0.0
- NA
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