CVE-2026-92392

CVE Enrichment

CVSS: 8.1 HIGH
EPSS: 0.63%
EPSS Percentile: 49.30%
CISA KEV: Not listed

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: 2499f714-1537-4658-8207-48ae4bb9eae9
Published: 14-Oct-2026 15:17
Last Modified: 16-Oct-2026 23:00
EPSS Date: 2026-10-16
CWE: CWE-416

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:H /
                            PR:N /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

References

Last enrichment sync: 22-Oct-2026 21:52
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

The flaw, a use-after-free tracked as CVE-2026-92392, affects curl and libcurl 8.12.0 through 8.22.0, both the command-line tool and the library that many other programs use for transfers. curl rates it High on its own curl Fixes HTTP/2 Upload Flaw That Can Enable Client-Side Code Execution

People (3)

MITRE ATT&CK (1)

Vendors (1)

Products (2)

Tools (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.