CVE-2026-8458 Affecting eco-python-curl package, versions <8.21.0-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.37% (31st percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-ECOPYTHONCURL-18388212
  • published29 Jul 2026
  • disclosed3 Jul 2026

Introduced: 3 Jul 2026

CVE-2026-8458  (opens in a new tab)

How to fix?

Upgrade Chainguard eco-python-curl to version 8.21.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream eco-python-curl package and not the eco-python-curl package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different "services".

libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead.

When reusing a connection a range of criteria must be met. Due to a logical error in the code, a request that was issued by an application could wrongfully reuse an existing connection to the same server that was authenticated using different services.

CVSS Base Scores

version 3.1