CVE Watch14 oct 2026

CVE-2022-32221

When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when th

CVSS

9.8

Crítico

EPSS

5.1%

p92

KEV

—

Exploit Today

0-100

Publicado: 5 dic 2022 · Última mod.: 14 oct 2026 · CWE-200 · CWE-668

EPSS · 30d

4.7%EPSS · 30 días5.1%

2026-10-072026-11-04

Descripción técnica

When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when the `CURLOPT_POSTFIELDS` option has been set, if the same handle previously was used to issue a `PUT` request which used that callback. This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use memory after free or similar in the subsequent `POST` request. The problem exists in the logic for a reused handle when it is changed from a PUT to a POST.

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