CVE-2026-92392

Published: Oct 14, 2026Modified: Oct 18, 2026

8.1

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 2.2 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

During an upload, curl mishandles HTTP/2 `RST_STREAM` received from the server (with reason `HTTP_1_1_REQUIRED` or `REFUSED_STREAM`) leading to a use after free of a `struct Curl_easy` object.

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (6)

https://curl.se/docs/CVE-2026-92392.html

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

https://curl.se/docs/CVE-2026-92392.json

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

https://hackerone.com/reports/4030333

Source: 2499f714-1537-4658-8207-48ae4bb9eae9

http://www.openwall.com/lists/oss-security/2026/10/18/5

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.openwall.com/lists/oss-security/2026/10/18/6

Source: af854a3a-2127-422b-91ae-364da2661108

https://hackerone.com/reports/4030333

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.