This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-9080 →

DEBIAN-CVE-2026-9080

Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION` callback triggers a use-after-free vulnerability, where libcurl attempts...

Original description

The description as published by the source.

Calling curl_easy_pause() within the event-based CURLMOPT_SOCKETFUNCTION callback triggers a use-after-free vulnerability, where libcurl attempts to store a flag using a dangling struct pointer immediately after that pointer's memory has been freed.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:13 curl

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 curl

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.21.0~rc2-1"}]}]

References

advisory security-tracker.debian.org