CVE-2026-80229 Affecting curl-8.8.0 package, versions <8.8.0+e1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.56% (45th percentile)

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  • Snyk IDSNYK-ECHOLATEST-CURL880-21280132
  • published20 Oct 2026
  • disclosed6 Sept 2026

Introduced: 6 Sep 2026

CVE-2026-80229  (opens in a new tab)

How to fix?

Upgrade Echo:latest curl-8.8.0 to version 8.8.0+e1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl-8.8.0 package and not the curl-8.8.0 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

When performing transfers via libcurl’s multi interface, pooled TLS connections can outlive their originating easy handles. In OpenSSL 3 provider configurations, libcurl attaches an allocated library context to the easy handle's state and passes it to OpenSSL without acquiring an ownership reference; destroying the easy handle prematurely frees this context while the active connection retains a dangling pointer, leading to a heap-use-after-free upon subsequent I/O or post-handshake operations.

CVSS Base Scores

version 3.1