{"schema_version":1,"title":"markdown2 (PyPI) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in markdown2 (PyPI): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2021-26813, was published on 3 March 2021.","url":"https://junglewise.ai/threats/technologies/markdown2","json_url":"https://junglewise.ai/threats/technologies/markdown2.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/markdown2","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":4,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":0},"latest":[{"cve":"CVE-2021-26813","cvss":3.1,"epss":0.0223,"slug":"cve-2021-26813-markdown2-regular-expression-denial-of-service","title":"PYSEC-2021-20 - markdown2 >=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of service vulnerability. If an attacker provides a malicio","severity":"low","exploited":false,"published_at":"2021-03-03T16:15:00+00:00","url":"https://junglewise.ai/threats/cve-2021-26813-markdown2-regular-expression-denial-of-service"},{"cve":"CVE-2020-11888","cvss":3.1,"epss":0.0193,"slug":"cve-2020-11888-xss-in-python-markdown2","title":"PYSEC-2020-65 - python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \\w+ match succeeds. For example, an attack might use","severity":"low","exploited":false,"published_at":"2020-04-20T16:15:00+00:00","url":"https://junglewise.ai/threats/cve-2020-11888-xss-in-python-markdown2"},{"cve":"CVE-2009-3724","cvss":3.1,"epss":0.0077,"slug":"cve-2009-3724-cross-site-scripting-in-markdown2-for-python","title":"PYSEC-2020-235 - python-markdown2 before 1.0.1.14 has multiple cross-site scripting (XSS) issues.","severity":"low","exploited":false,"published_at":"2020-01-15T21:15:00+00:00","url":"https://junglewise.ai/threats/cve-2009-3724-cross-site-scripting-in-markdown2-for-python"},{"cve":"CVE-2018-5773","cvss":3,"epss":0.0082,"slug":"cve-2018-5773-markdown2-is-vulnerable-to-cross-site-scripting","title":"PYSEC-2018-13 - An issue was discovered in markdown2 (aka python-markdown2) through 2.3.5. The safe_mode feature, which is supposed to sanitize user input a","severity":"low","exploited":false,"published_at":"2018-01-18T21:29:00+00:00","url":"https://junglewise.ai/threats/cve-2018-5773-markdown2-is-vulnerable-to-cross-site-scripting"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"tensorflow (PyPI)","slug":"pypi-tensorflow","vulnerabilities":428,"url":"https://junglewise.ai/threats/technologies/pypi-tensorflow"},{"name":"tensorflow-cpu (PyPI)","slug":"tensorflow-cpu","vulnerabilities":424,"url":"https://junglewise.ai/threats/technologies/tensorflow-cpu"},{"name":"tensorflow-gpu (PyPI)","slug":"tensorflow-gpu","vulnerabilities":421,"url":"https://junglewise.ai/threats/technologies/tensorflow-gpu"},{"name":"open-webui (PyPI)","slug":"open-webui","vulnerabilities":177,"url":"https://junglewise.ai/threats/technologies/open-webui"},{"name":"Django (PyPI)","slug":"django","vulnerabilities":172,"url":"https://junglewise.ai/threats/technologies/django"},{"name":"apache-airflow (PyPI)","slug":"apache-airflow","vulnerabilities":152,"url":"https://junglewise.ai/threats/technologies/apache-airflow"},{"name":"plone (PyPI)","slug":"pypi-plone","vulnerabilities":101,"url":"https://junglewise.ai/threats/technologies/pypi-plone"},{"name":"praisonai (PyPI)","slug":"pypi-praisonai","vulnerabilities":86,"url":"https://junglewise.ai/threats/technologies/pypi-praisonai"},{"name":"exiv2 (PyPI)","slug":"exiv2","vulnerabilities":85,"url":"https://junglewise.ai/threats/technologies/exiv2"},{"name":"nltk (PyPI)","slug":"nltk","vulnerabilities":83,"url":"https://junglewise.ai/threats/technologies/nltk"},{"name":"mlflow (PyPI)","slug":"mlflow","vulnerabilities":82,"url":"https://junglewise.ai/threats/technologies/mlflow"},{"name":"pillow (PyPI)","slug":"pillow","vulnerabilities":79,"url":"https://junglewise.ai/threats/technologies/pillow"}],"technology":{"hub":true,"name":"markdown2 (PyPI)","slug":"markdown2","vendor":{"name":"PyPI","slug":"pypi","url":"https://junglewise.ai/threats/vendors/pypi"},"aliases":[],"description":"Python implementation of Markdown text-to-HTML conversion.","url":"https://junglewise.ai/threats/technologies/markdown2"},"most_severe":[{"cve":"CVE-2021-26813","cvss":3.1,"epss":0.0223,"slug":"cve-2021-26813-markdown2-regular-expression-denial-of-service","title":"PYSEC-2021-20 - markdown2 >=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of service vulnerability. If an attacker provides a malicio","severity":"low","exploited":false,"published_at":"2021-03-03T16:15:00+00:00","url":"https://junglewise.ai/threats/cve-2021-26813-markdown2-regular-expression-denial-of-service"},{"cve":"CVE-2020-11888","cvss":3.1,"epss":0.0193,"slug":"cve-2020-11888-xss-in-python-markdown2","title":"PYSEC-2020-65 - python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \\w+ match succeeds. For example, an attack might use","severity":"low","exploited":false,"published_at":"2020-04-20T16:15:00+00:00","url":"https://junglewise.ai/threats/cve-2020-11888-xss-in-python-markdown2"},{"cve":"CVE-2009-3724","cvss":3.1,"epss":0.0077,"slug":"cve-2009-3724-cross-site-scripting-in-markdown2-for-python","title":"PYSEC-2020-235 - python-markdown2 before 1.0.1.14 has multiple cross-site scripting (XSS) issues.","severity":"low","exploited":false,"published_at":"2020-01-15T21:15:00+00:00","url":"https://junglewise.ai/threats/cve-2009-3724-cross-site-scripting-in-markdown2-for-python"},{"cve":"CVE-2018-5773","cvss":3,"epss":0.0082,"slug":"cve-2018-5773-markdown2-is-vulnerable-to-cross-site-scripting","title":"PYSEC-2018-13 - An issue was discovered in markdown2 (aka python-markdown2) through 2.3.5. The safe_mode feature, which is supposed to sanitize user input a","severity":"low","exploited":false,"published_at":"2018-01-18T21:29:00+00:00","url":"https://junglewise.ai/threats/cve-2018-5773-markdown2-is-vulnerable-to-cross-site-scripting"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}