---
id: CVE-2026-92392
title: |-
  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.
summary: |-
  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.
severity: none
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T08:17:05.997'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92392'
references:
  - url: 'https://curl.se/docs/CVE-2026-92392.html'
    label: 2499f714-1537-4658-8207-48ae4bb9eae9
  - url: 'https://curl.se/docs/CVE-2026-92392.json'
    label: 2499f714-1537-4658-8207-48ae4bb9eae9
  - url: 'https://hackerone.com/reports/4030333'
    label: 2499f714-1537-4658-8207-48ae4bb9eae9
tags:
  - nvd
ingestedAt: '2026-10-14T08:23:04.345Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.