# CVE-2026-92392: HTTP/2 upload Use-After-Free

CVE-2026-92392 is fixed in 12 products on 1 platform, first by DEBIAN-CVE-2026-92392, released October 16, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-92392
- Priority: High
- CVSS: 8.1 (Important)
- EPSS: 0.0128
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 13, 2026
- Weakness: Use After Free
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-92392

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | curl Debian 13.5 (trixie) | 8.14.1-2+deb13u7 | [DEBIAN-CVE-2026-92392](https://patchblox.com/security/data/fix/linux/debian-cve-2026-92392.md) | Oct 16, 2026 |
| Linux | curl Ubuntu 26.04.1 LTS (resolute) | 8.18.0-1ubuntu2.8 | [curl 8.18.0-1ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-curl-8.18.0-1ubuntu2.8.md) | Nov 7, 2026 |
| Linux | curl amzn 2023 | 8.21.0-5.amzn2023.0.3 | [ALAS2023-2026-3267](https://patchblox.com/security/data/fix/linux/alas2023-2026-3267.md) | Nov 7, 2026 |
| Linux | curl sles 15.6 | 8.22.0-150600.4.58.1 | [SUSE-SU-2026:5069-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5069-1.md) | Nov 7, 2026 |
| Linux | curl sles 15.7 | 8.22.0-150700.7.33.1 | [SUSE-SU-2026:5068-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-5068-1.md) | Nov 7, 2026 |
| Linux | curl-debuginfo amzn 2023 | 8.21.0-5.amzn2023.0.3 | [ALAS2023-2026-3267](https://patchblox.com/security/data/fix/linux/alas2023-2026-3267.md) | Nov 7, 2026 |
| Linux | curl-debugsource amzn 2023 | 8.21.0-5.amzn2023.0.3 | [ALAS2023-2026-3267](https://patchblox.com/security/data/fix/linux/alas2023-2026-3267.md) | Nov 7, 2026 |
| Linux | curl-minimal amzn 2023 | 8.21.0-5.amzn2023.0.3 | [ALAS2023-2026-3267](https://patchblox.com/security/data/fix/linux/alas2023-2026-3267.md) | Nov 7, 2026 |
| Linux | curl-minimal-debuginfo amzn 2023 | 8.21.0-5.amzn2023.0.3 | [ALAS2023-2026-3267](https://patchblox.com/security/data/fix/linux/alas2023-2026-3267.md) | Nov 7, 2026 |
| Linux | libcurl amzn 2023 | 8.21.0-5.amzn2023.0.3 | [ALAS2023-2026-3267](https://patchblox.com/security/data/fix/linux/alas2023-2026-3267.md) | Nov 7, 2026 |
| Linux | libcurl-debuginfo amzn 2023 | 8.21.0-5.amzn2023.0.3 | [ALAS2023-2026-3267](https://patchblox.com/security/data/fix/linux/alas2023-2026-3267.md) | Nov 7, 2026 |
| Linux | libcurl-devel amzn 2023 | 8.21.0-5.amzn2023.0.3 | [ALAS2023-2026-3267](https://patchblox.com/security/data/fix/linux/alas2023-2026-3267.md) | Nov 7, 2026 |
| Linux | libcurl-minimal amzn 2023 | 8.21.0-5.amzn2023.0.3 | [ALAS2023-2026-3267](https://patchblox.com/security/data/fix/linux/alas2023-2026-3267.md) | Nov 7, 2026 |
| Linux | libcurl-minimal-debuginfo amzn 2023 | 8.21.0-5.amzn2023.0.3 | [ALAS2023-2026-3267](https://patchblox.com/security/data/fix/linux/alas2023-2026-3267.md) | Nov 7, 2026 |
| Linux | libcurl3t64-gnutls Ubuntu 26.04.1 LTS (resolute) | 8.18.0-1ubuntu2.8 | [libcurl3t64-gnutls 8.18.0-1ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libcurl3t64-gnutls-8.18.0-1ubuntu2.8.md) | Nov 7, 2026 |
| Linux | libcurl4t64 Ubuntu 26.04.1 LTS (resolute) | 8.18.0-1ubuntu2.8 | [libcurl4t64 8.18.0-1ubuntu2.8](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libcurl4t64-8.18.0-1ubuntu2.8.md) | Nov 7, 2026 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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