0.0
NA
CVE-2026-10536
HTTP/2 stream-dependency tree UAF
Description

A use-after-free vulnerability exists in libcurl when an application configures an HTTP/2 stream-dependency tree via `CURLOPT_STREAM_DEPENDS` or `CURLOPT_STREAM_DEPENDS_E`, subsequently invokes `curl_easy_reset()`, and finally terminates the handle with `curl_easy_cleanup()`. During this final cleanup phase, libcurl attempts to access and modify an internal structure that was already freed during the reset operation.

INFO

Published Date :

July 3, 2026, 6:11 a.m.

Last Modified :

July 3, 2026, 6:11 a.m.

Remotely Exploit :

No

Source :

curl
Affected Products

The following products are affected by CVE-2026-10536 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

Solution
Update libcurl to fix use-after-free in HTTP/2 stream dependency handling.
  • Update libcurl to the latest version.
  • Recompile applications linked against libcurl.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-10536 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.