Trust Boundary Violation Affecting libcurl-minimal package, versions *


Severity

Recommended
0.0
low
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.37% (29th percentile)

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  • Snyk IDSNYK-CENTOS8-LIBCURLMINIMAL-20099114
  • published24 Sept 2026
  • disclosed6 Sept 2026

Introduced: 6 Sep 2026

NewCVE-2026-82209  (opens in a new tab)
CWE-501  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 libcurl-minimal.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl-minimal package and not the libcurl-minimal package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

When libpsl support is enabled, libcurl fails to enforce the Public Suffix List boundary check when processing a Set-Cookie header where the Domain attribute explicitly matches an origin host that is itself a public suffix (e.g., Domain=co.uk set by co.uk).

Instead of coercing it into a strict host-only cookie, libcurl saves the cookie with wildcard domain scope (.co.uk). Consequently, the cookie is inappropriately included in subsequent outbound requests or HTTP redirects to arbitrary sibling subdomains under the same public suffix (e.g., attacker.co.uk).

CVSS Base Scores

version 3.1