UNKNOWN NVD
CVE-2026-80255
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
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.
References
- https://curl.se/docs/CVE-2026-80255.html
- https://curl.se/docs/CVE-2026-80255.json
- https://hackerone.com/reports/3972395
This unknown severity vulnerability was published on 2026-09-06 via NVD.
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