CVE-2026-92392
HTTP/2 upload Use-After-Free
HIGH
8.1
CVSS Score
Published: October 14, 2026 at 07:46 AM UTC
Updated: October 20, 2026 at 08:25 PM UTC
1 product affected across 1 vendorCurl
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Severity
HIGH8.1
Exploit prediction
EPSS 1%
SSVC
PoC
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.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (5)
Source: cverecord
https://curl.se/docs/CVE-2026-92392.jsonSource: cverecord
https://curl.se/docs/CVE-2026-92392.htmlSource: cverecord
https://hackerone.com/reports/4030333Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/10/18/5Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/10/18/6SSVC — Action Prioritization
SSVCPoCNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
8.1HIGHCISA-ADP
- Attack Vector
- NETWORK
- Complexity
- HIGH
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusAWAITING ANALYSIS
CWE
CWE-416
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