{"schema_version":1,"title":"bleach (PyPI) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 10 vulnerabilities in bleach (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, Mozilla Bleach XSS via unsanitized formaction attribute, was published on 16 June 2026.","url":"https://junglewise.ai/threats/technologies/bleach","json_url":"https://junglewise.ai/threats/technologies/bleach.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/bleach","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":10,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":3},"latest":[{"cvss":6.1,"slug":"mozilla-bleach-xss-via-unsanitized-formaction-attribute-604755fa","title":"Mozilla Bleach XSS via unsanitized formaction attribute","severity":"medium","exploited":false,"published_at":"2026-06-16T14:07:49+00:00","url":"https://junglewise.ai/threats/mozilla-bleach-xss-via-unsanitized-formaction-attribute-604755fa"},{"cvss":4.3,"slug":"mozilla-bleach-redos-in-linkify-with-parse-email-enabled-47729578","title":"Mozilla Bleach ReDoS in linkify with parse_email enabled","severity":"medium","exploited":false,"published_at":"2026-06-16T14:07:30+00:00","url":"https://junglewise.ai/threats/mozilla-bleach-redos-in-linkify-with-parse-email-enabled-47729578"},{"cvss":0,"slug":"mozilla-bleach-uri-sanitization-bypass-via-unicode-characters-79149728","title":"Mozilla Bleach URI sanitization bypass via Unicode characters","severity":"low","exploited":false,"published_at":"2026-06-16T14:06:29+00:00","url":"https://junglewise.ai/threats/mozilla-bleach-uri-sanitization-bypass-via-unicode-characters-79149728"},{"cve":"CVE-2021-23980","cvss":3.1,"epss":0.0048,"slug":"cve-2021-23980-cross-site-scripting-in-bleach","title":"PYSEC-2021-865 - In Mozilla Bleach before 3.3.0, a mutation XSS affects users calling bleach.clean with math or svg; p or br; and style, title, noscript, scr","severity":"low","exploited":false,"published_at":"2021-02-02T17:58:00+00:00","url":"https://junglewise.ai/threats/cve-2021-23980-cross-site-scripting-in-bleach"},{"cvss":6.1,"slug":"bleach-cross-site-scripting-in-html-sanitization-17455ea4","title":"bleach cross-site scripting in HTML sanitization","severity":"info","exploited":false,"published_at":"2020-09-03T17:13:45+00:00","url":"https://junglewise.ai/threats/bleach-cross-site-scripting-in-html-sanitization-17455ea4"},{"cve":"CVE-2014-8881","cvss":3.1,"slug":"cve-2014-8881-bleach-regular-expression-denial-of-service","title":"bleach regular expression denial of service","severity":"low","exploited":false,"published_at":"2020-09-01T15:16:43+00:00","url":"https://junglewise.ai/threats/cve-2014-8881-bleach-regular-expression-denial-of-service"},{"cve":"CVE-2020-6817","cvss":3.1,"epss":0.0072,"slug":"cve-2020-6817-regular-expression-denial-of-service-redos-in-bleach","title":"PYSEC-2020-340 - In Mozilla Bleach before 3.1.4, `bleach.clean` behavior parsing style attributes could result in a regular expression denial of service (ReD","severity":"low","exploited":false,"published_at":"2020-03-30T19:45:00+00:00","url":"https://junglewise.ai/threats/cve-2020-6817-regular-expression-denial-of-service-redos-in-bleach"},{"cve":"CVE-2020-6816","cvss":3.1,"epss":0.0134,"slug":"cve-2020-6816-bleach-vulnerable-to-mutation-xss-via-whitelisted-math-or-svg-and","title":"PYSEC-2020-28 - In Mozilla Bleach before 3.12, a mutation XSS in bleach.clean when RCDATA and either svg or math tags are whitelisted and the keyword argume","severity":"low","exploited":false,"published_at":"2020-03-24T22:15:00+00:00","url":"https://junglewise.ai/threats/cve-2020-6816-bleach-vulnerable-to-mutation-xss-via-whitelisted-math-or-svg-and"},{"cve":"CVE-2020-6802","cvss":3.1,"epss":0.0173,"slug":"cve-2020-6802-xss-in-bleach-when-noscript-and-raw-tag-whitelisted","title":"PYSEC-2020-27 - In Mozilla Bleach before 3.11, a mutation XSS affects users calling bleach.clean with noscript and a raw tag in the allowed/whitelisted tags","severity":"low","exploited":false,"published_at":"2020-03-24T22:15:00+00:00","url":"https://junglewise.ai/threats/cve-2020-6802-xss-in-bleach-when-noscript-and-raw-tag-whitelisted"},{"cve":"CVE-2018-7753","cvss":3,"epss":0.0217,"slug":"cve-2018-7753-bleach-uri-scheme-restriction-bypass","title":"PYSEC-2018-51 - An issue was discovered in Bleach 2.1.x before 2.1.3. Attributes that have URI values weren't properly sanitized if the values contained cha","severity":"low","exploited":false,"published_at":"2018-03-07T23:29:00+00:00","url":"https://junglewise.ai/threats/cve-2018-7753-bleach-uri-scheme-restriction-bypass"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"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}],"related":[{"name":"open-webui (PyPI)","slug":"open-webui","vulnerabilities":156,"url":"https://junglewise.ai/threats/technologies/open-webui"},{"name":"nltk (PyPI)","slug":"nltk","vulnerabilities":74,"url":"https://junglewise.ai/threats/technologies/nltk"},{"name":"picklescan (PyPI)","slug":"picklescan","vulnerabilities":74,"url":"https://junglewise.ai/threats/technologies/picklescan"},{"name":"openbabel (PyPI)","slug":"openbabel","vulnerabilities":48,"url":"https://junglewise.ai/threats/technologies/openbabel"},{"name":"apache-superset (PyPI)","slug":"apache-superset","vulnerabilities":44,"url":"https://junglewise.ai/threats/technologies/apache-superset"},{"name":"apache-airflow (PyPI)","slug":"apache-airflow","vulnerabilities":40,"url":"https://junglewise.ai/threats/technologies/apache-airflow"},{"name":"tensorflow-gpu (PyPI)","slug":"tensorflow-gpu","vulnerabilities":37,"url":"https://junglewise.ai/threats/technologies/tensorflow-gpu"},{"name":"tensorflow-cpu (PyPI)","slug":"tensorflow-cpu","vulnerabilities":34,"url":"https://junglewise.ai/threats/technologies/tensorflow-cpu"},{"name":"weblate (PyPI)","slug":"weblate","vulnerabilities":33,"url":"https://junglewise.ai/threats/technologies/weblate"},{"name":"mcp-atlassian (PyPI)","slug":"mcp-atlassian","vulnerabilities":30,"url":"https://junglewise.ai/threats/technologies/mcp-atlassian"},{"name":"crawl4ai (PyPI)","slug":"crawl4ai","vulnerabilities":28,"url":"https://junglewise.ai/threats/technologies/crawl4ai"},{"name":"moin (PyPI)","slug":"moin","vulnerabilities":28,"url":"https://junglewise.ai/threats/technologies/moin"}],"technology":{"hub":true,"name":"bleach (PyPI)","slug":"bleach","vendor":{"name":"PyPI","slug":"pypi","url":"https://junglewise.ai/threats/vendors/pypi"},"aliases":[],"homepage":"https://pypi.org/project/bleach/","repo_url":"https://github.com/mozilla/bleach","description":"A Python library that provides an allowed-list-based HTML sanitizing tool.","url":"https://junglewise.ai/threats/technologies/bleach"},"most_severe":[{"cvss":6.1,"slug":"mozilla-bleach-xss-via-unsanitized-formaction-attribute-604755fa","title":"Mozilla Bleach XSS via unsanitized formaction attribute","severity":"medium","exploited":false,"published_at":"2026-06-16T14:07:49+00:00","url":"https://junglewise.ai/threats/mozilla-bleach-xss-via-unsanitized-formaction-attribute-604755fa"},{"cvss":4.3,"slug":"mozilla-bleach-redos-in-linkify-with-parse-email-enabled-47729578","title":"Mozilla Bleach ReDoS in linkify with parse_email enabled","severity":"medium","exploited":false,"published_at":"2026-06-16T14:07:30+00:00","url":"https://junglewise.ai/threats/mozilla-bleach-redos-in-linkify-with-parse-email-enabled-47729578"},{"cve":"CVE-2020-6802","cvss":3.1,"epss":0.0173,"slug":"cve-2020-6802-xss-in-bleach-when-noscript-and-raw-tag-whitelisted","title":"PYSEC-2020-27 - In Mozilla Bleach before 3.11, a mutation XSS affects users calling bleach.clean with noscript and a raw tag in the allowed/whitelisted tags","severity":"low","exploited":false,"published_at":"2020-03-24T22:15:00+00:00","url":"https://junglewise.ai/threats/cve-2020-6802-xss-in-bleach-when-noscript-and-raw-tag-whitelisted"},{"cve":"CVE-2020-6816","cvss":3.1,"epss":0.0134,"slug":"cve-2020-6816-bleach-vulnerable-to-mutation-xss-via-whitelisted-math-or-svg-and","title":"PYSEC-2020-28 - In Mozilla Bleach before 3.12, a mutation XSS in bleach.clean when RCDATA and either svg or math tags are whitelisted and the keyword argume","severity":"low","exploited":false,"published_at":"2020-03-24T22:15:00+00:00","url":"https://junglewise.ai/threats/cve-2020-6816-bleach-vulnerable-to-mutation-xss-via-whitelisted-math-or-svg-and"},{"cve":"CVE-2020-6817","cvss":3.1,"epss":0.0072,"slug":"cve-2020-6817-regular-expression-denial-of-service-redos-in-bleach","title":"PYSEC-2020-340 - In Mozilla Bleach before 3.1.4, `bleach.clean` behavior parsing style attributes could result in a regular expression denial of service (ReD","severity":"low","exploited":false,"published_at":"2020-03-30T19:45:00+00:00","url":"https://junglewise.ai/threats/cve-2020-6817-regular-expression-denial-of-service-redos-in-bleach"},{"cve":"CVE-2021-23980","cvss":3.1,"epss":0.0048,"slug":"cve-2021-23980-cross-site-scripting-in-bleach","title":"PYSEC-2021-865 - In Mozilla Bleach before 3.3.0, a mutation XSS affects users calling bleach.clean with math or svg; p or br; and style, title, noscript, scr","severity":"low","exploited":false,"published_at":"2021-02-02T17:58:00+00:00","url":"https://junglewise.ai/threats/cve-2021-23980-cross-site-scripting-in-bleach"},{"cve":"CVE-2014-8881","cvss":3.1,"slug":"cve-2014-8881-bleach-regular-expression-denial-of-service","title":"bleach regular expression denial of service","severity":"low","exploited":false,"published_at":"2020-09-01T15:16:43+00:00","url":"https://junglewise.ai/threats/cve-2014-8881-bleach-regular-expression-denial-of-service"},{"cve":"CVE-2018-7753","cvss":3,"epss":0.0217,"slug":"cve-2018-7753-bleach-uri-scheme-restriction-bypass","title":"PYSEC-2018-51 - An issue was discovered in Bleach 2.1.x before 2.1.3. Attributes that have URI values weren't properly sanitized if the values contained cha","severity":"low","exploited":false,"published_at":"2018-03-07T23:29:00+00:00","url":"https://junglewise.ai/threats/cve-2018-7753-bleach-uri-scheme-restriction-bypass"},{"cvss":0,"slug":"mozilla-bleach-uri-sanitization-bypass-via-unicode-characters-79149728","title":"Mozilla Bleach URI sanitization bypass via Unicode characters","severity":"low","exploited":false,"published_at":"2026-06-16T14:06:29+00:00","url":"https://junglewise.ai/threats/mozilla-bleach-uri-sanitization-bypass-via-unicode-characters-79149728"},{"cvss":6.1,"slug":"bleach-cross-site-scripting-in-html-sanitization-17455ea4","title":"bleach cross-site scripting in HTML sanitization","severity":"info","exploited":false,"published_at":"2020-09-03T17:13:45+00:00","url":"https://junglewise.ai/threats/bleach-cross-site-scripting-in-html-sanitization-17455ea4"}],"generated_at":"2026-09-26T13:07:00.120236+00:00"}