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Case File

CVE-2022-27779

MEDIUM · CVSS 5.3 EPSS 2.57%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-06-02 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.3. See the original NVD description below for full technical details.

CVE
CVE-2022-27779
Severity
MEDIUM
CVSS
5.3
EPSS
2.57%

Original NVD Description

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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)