CVE-2026-92392High· 8.1▾ MidnightPoC availableDuring 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.
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 44.6 · likelihood 0.3 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
1 GitHub repo
— → 8.1
none → high
0.2% → 1.3%
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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