libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's "cookie engine" can bebuilt with or without [Public Suffix List](https://publicsuffix.org/)awareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 02 Nov 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 14 Oct 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: hackerone
Published:
Updated: 2026-11-02T18:26:29.601Z
Reserved: 2022-03-23T00:00:00.000Z
Link: CVE-2022-27779
Updated: 2024-08-03T05:33:00.476Z
Status : Modified
Published: 2022-06-02T14:15:44.093
Modified: 2026-11-02T19:17:48.440
Link: CVE-2022-27779
OpenCVE Enrichment
No data.
Weaknesses