Reliance on Cookies without Validation and Integrity Checking Affecting libcurl-devel package, versions <0:8.3.0-1.amzn2.0.13


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.66% (50th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-AMZN2-LIBCURLDEVEL-20244846
  • published29 Sept 2026
  • disclosed3 Jul 2026

Introduced: 3 Jul 2026

CVE-2026-8924  (opens in a new tab)
CWE-565  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 libcurl-devel to version 0:8.3.0-1.amzn2.0.13 or higher.
This issue was patched in ALAS2-2026-3953.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl-devel package and not the libcurl-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A flaw in curl’s cookie parsing logic allows a malicious HTTP server to set "super cookies" that bypass the Public Suffix List check. This enables an attacker-controlled origin to inject cookies that curl subsequently scopes and transmits to unrelated third-party domains.

CVSS Base Scores

version 3.1