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 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.

• CWE-200
• CWE-668

• http://seclists.org/fulldisclosure/2023/Jan/19Mailing List, Third Party Advisory
• http://seclists.org/fulldisclosure/2023/Jan/20Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2023/05/17/4Mailing List
• https://hackerone.com/reports/1704017Exploit, Issue Tracking, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/01/msg00028.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202212-01Third Party Advisory
• https://security.netapp.com/advisory/ntap-20230110-0006/Third Party Advisory
• https://security.netapp.com/advisory/ntap-20230208-0002/Third Party Advisory
• https://support.apple.com/kb/HT213604Third Party Advisory
• https://support.apple.com/kb/HT213605Third Party Advisory
• https://www.debian.org/security/2023/dsa-5330Third Party Advisory
• http://seclists.org/fulldisclosure/2023/Jan/19Mailing List, Third Party Advisory
• http://seclists.org/fulldisclosure/2023/Jan/20Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2023/05/17/4Mailing List
• https://hackerone.com/reports/1704017Exploit, Issue Tracking, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/01/msg00028.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202212-01Third Party Advisory
• https://security.netapp.com/advisory/ntap-20230110-0006/Third Party Advisory
• https://security.netapp.com/advisory/ntap-20230208-0002/Third Party Advisory
• https://support.apple.com/kb/HT213604Third Party Advisory
• https://support.apple.com/kb/HT213605Third Party Advisory
• https://www.debian.org/security/2023/dsa-5330Third Party Advisory

Published

Dec 5, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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