Exposure of Data Element to Wrong Session Affecting libcurl-minimal-debuginfo package, versions <0:8.21.0-5.amzn2023.0.4


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.75% (55th percentile)

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  • Snyk IDSNYK-AMZN2023-LIBCURLMINIMALDEBUGINFO-22393908
  • published10 Nov 2026
  • disclosed6 Sept 2026

Introduced: 6 Sep 2026

CVE-2026-19931  (opens in a new tab)
CWE-488  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 libcurl-minimal-debuginfo to version 0:8.21.0-5.amzn2023.0.4 or higher.
This issue was patched in ALAS2023-2026-3404.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl-minimal-debuginfo package and not the libcurl-minimal-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A flaw in libcurl makes it wrongly reuse an HTTP connection setup for a given hostname using Negotiate authentication, when the initial request is done using empty credentials. This can make user B's request get sent over user A's previously authenticated connection.

CVSS Base Scores

version 3.1