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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 …

Medium CVSS 5.3
CVECVE-2022-27779
First seen2026-10-14 18:15 UTC
Disclosed2022-06-02 14:15 UTC
Last updated2026-10-14 18:15 UTC
Channel statusauto

Summary

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…

In-depth triage

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

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Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD