https://vulnerability.circl.lu/sightings/feed 2026-05-28T22:28:11.357817+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent sightings. https://vulnerability.circl.lu/sighting/6eb0bc45-7850-4a7a-80fe-3ebb2677db53/export 2026-05-28T22:28:11.733691+00:00 Automation user https://cve.circl.lu/user/automation {"uuid": "6eb0bc45-7850-4a7a-80fe-3ebb2677db53", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-43838", "type": "seen", "source": "https://t.me/cibsecurity/34234", "content": "\u203c CVE-2021-43838 \u203c\n\njsx-slack is a library for building JSON objects for Slack Block Kit surfaces from JSX. In versions prior to 4.5.1 users are vulnerable to a regular expression denial-of-service (ReDoS) attack. If attacker can put a lot of JSX elements into `` tag, an internal regular expression for escaping characters may consume an excessive amount of computing resources. jsx-slack v4.5.1 has patched to a regex for escaping blockquote characters. Users are advised to upgrade as soon as possible.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-12-17T22:37:47.000000Z"} 2021-12-17T22:37:47+00:00