CVE-2026-92392
Publication date 14 October 2026
Last updated 19 October 2026
Ubuntu priority
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.
Why is this CVE high priority?
Upstream defined this as high severity
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| curl | 26.10 stonking |
Fixed in 8.20.0-2ubuntu11.1
|
| 26.04 LTS resolute |
Fixed in 8.18.0-1ubuntu2.8
|
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty |
Not affected
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
8.1 · High
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
Related Ubuntu Security Notices (USN)
- USN-8927-1
- curl vulnerabilities
- 14 October 2026
- USN-8927-2
- curl vulnerabilities
- 19 October 2026