{"vulnerability": "CVE-2021-22946", "sightings": [{"uuid": "d73575ca-606a-40c6-8326-e5d03f051104", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-22946", "type": "seen", "source": "https://t.me/ctinow/40326", "content": "curl: CVE-2021-22946: Protocol downgrade required TLS bypassed\n\nhttps://ift.tt/3lOM9fK", "creation_timestamp": "2021-09-24T16:11:22.000000Z"}, {"uuid": "3385db36-c6ae-4a6c-a12b-5f2c3b5fa7b0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-22946", "type": "seen", "source": "https://bsky.app/profile/cyberhub.blog/post/3mjo2ekwqut2l", "content": "", "creation_timestamp": "2026-04-17T04:07:08.767737Z"}, {"uuid": "4ca931ac-ab04-48c6-b4c4-ab545cb54c4c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-22946", "type": "seen", "source": "https://t.me/cibsecurity/29681", "content": "\u203c CVE-2021-22946 \u203c\n\nA user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-09-30T00:37:08.000000Z"}]}