This page tracks the Alpine Linux fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-8458 →

ALPINE-CVE-2026-8458

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

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Alpine:v3.23 curl

[{"type":"ECOSYSTEM","events":[{"introduced":"7.46.0"},{"fixed":"8.22.0-r0"}]}]

Alpine:v3.24 curl

[{"type":"ECOSYSTEM","events":[{"introduced":"7.46.0"},{"fixed":"8.21.0-r0"}]}]

References

advisory security.alpinelinux.org