CVE-2026-10536

Friday, July 03, 2026

N/A

Summary

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.

Affected Software

Vendor	Product	Version Range	Status
curl	curl	`8.20.0 <= 8.20.0`	affected
curl	curl	`8.19.0 <= 8.19.0`	affected
curl	curl	`8.18.0 <= 8.18.0`	affected
curl	curl	`8.17.0 <= 8.17.0`	affected
curl	curl	`8.16.0 <= 8.16.0`	affected
curl	curl	`8.15.0 <= 8.15.0`	affected
curl	curl	`8.14.1 <= 8.14.1`	affected
curl	curl	`8.14.0 <= 8.14.0`	affected
curl	curl	`8.13.0 <= 8.13.0`	affected
curl	curl	`8.12.1 <= 8.12.1`	affected
curl	curl	`8.12.0 <= 8.12.0`	affected
curl	curl	`8.11.1 <= 8.11.1`	affected
curl	curl	`8.11.0 <= 8.11.0`	affected
curl	curl	`8.10.1 <= 8.10.1`	affected
curl	curl	`8.10.0 <= 8.10.0`	affected
curl	curl	`8.9.1 <= 8.9.1`	affected
curl	curl	`8.9.0 <= 8.9.0`	affected
curl	curl	`8.8.0 <= 8.8.0`	affected
curl	curl	`8.7.1 <= 8.7.1`	affected
curl	curl	`8.7.0 <= 8.7.0`	affected
curl	curl	`8.6.0 <= 8.6.0`	affected
curl	curl	`8.5.0 <= 8.5.0`	affected
curl	curl	`8.4.0 <= 8.4.0`	affected
curl	curl	`8.3.0 <= 8.3.0`	affected
curl	curl	`8.2.1 <= 8.2.1`	affected
curl	curl	`8.2.0 <= 8.2.0`	affected
curl	curl	`8.1.2 <= 8.1.2`	affected
curl	curl	`8.1.1 <= 8.1.1`	affected
curl	curl	`8.1.0 <= 8.1.0`	affected
curl	curl	`8.0.1 <= 8.0.1`	affected
curl	curl	`8.0.0 <= 8.0.0`	affected
curl	curl	`7.88.1 <= 7.88.1`	affected
curl	curl	`7.88.0 <= 7.88.0`	affected

Weaknesses

CWE-416 Use After Free

References

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