Public proof of concept

CVE-2026-92392

A public proof of concept exists; no exploitation attested.

Published2026-10-14
WeaknessCWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2026-10-1408:17CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-92392?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-92392?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-92392 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-10-23 19:25 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedashu7ank/CVE-2026-92392

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionpoc2026-10-15
OpenCVESSVC decisionpoc—
CISA-ADPCVSS 3.18.12026-10-15
CISA-ADPweakness (CWE)CWE-4162026-10-15
FIRST EPSSEPSS score0.9 %2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2026-10-14
Last Modified: 2026-10-18
NVD status: Awaiting Analysis

Frequently asked questions

What is CVE-2026-92392?

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.

Is CVE-2026-92392 actively exploited?

A proof-of-concept exploit exists for CVE-2026-92392, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-92392?

CVE-2026-92392 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

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