Technology · PyPI
lxml (PyPI) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 8 vulnerabilities in lxml (PyPI): 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-49825, was published on 20 August 2026.
- Last 7 days
- 0
- Last 90 days
- 1
- Critical, all time
- 0
- Exploited in the wild
- 0
About lxml (PyPI)
A Pythonic binding for the C libraries libxml2 and libxslt, providing XML and HTML processing capabilities.
Latest lxml (PyPI) vulnerabilities
- CVE-2026-49825: lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.1, link attributes in…highCVSS 8.2EPSS 0.4%
- CVE-2026-41066: lxml XXE in iterparse and ETCompatXMLParserhighCVSS 7.5EPSS 0.4%
- CVE-2022-2309: PYSEC-2022-230 - NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only…lowCVSS 3EPSS 2.4%
- CVE-2021-43818: PYSEC-2021-852 - lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML…lowCVSS 3.1EPSS 2.5%
- CVE-2021-28957: PYSEC-2021-19 - An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling…lowCVSS 3.1EPSS 4.0%
- CVE-2020-27783: PYSEC-2020-62 - A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly…lowCVSS 3.1EPSS 4.0%
- CVE-2018-19787: PYSEC-2018-12 - An issue was discovered in lxml before 4.2.5. lxml/html/clean.py in the lxml.html.clean module does not…lowCVSS 3EPSS 2.4%
- CVE-2014-3146: PYSEC-2014-9 - Incomplete blacklist vulnerability in the lxml.html.clean module in lxml before 3.3.5 allows remote…lowCVSS 3.1EPSS 6.3%
Most severe lxml (PyPI) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-49825: lxml is a library for processing XML and HTML in the Python language. Prior to 6.1.1, link attributes in…highCVSS 8.2EPSS 0.4%
- CVE-2026-41066: lxml XXE in iterparse and ETCompatXMLParserhighCVSS 7.5EPSS 0.4%
- CVE-2014-3146: PYSEC-2014-9 - Incomplete blacklist vulnerability in the lxml.html.clean module in lxml before 3.3.5 allows remote…lowCVSS 3.1EPSS 6.3%
- CVE-2021-28957: PYSEC-2021-19 - An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling…lowCVSS 3.1EPSS 4.0%
- CVE-2020-27783: PYSEC-2020-62 - A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly…lowCVSS 3.1EPSS 4.0%
- CVE-2021-43818: PYSEC-2021-852 - lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML…lowCVSS 3.1EPSS 2.5%
- CVE-2018-19787: PYSEC-2018-12 - An issue was discovered in lxml before 4.2.5. lxml/html/clean.py in the lxml.html.clean module does not…lowCVSS 3EPSS 2.4%
- CVE-2022-2309: PYSEC-2022-230 - NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only…lowCVSS 3EPSS 2.4%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 1 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/lxml.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "lxml (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/lxml, 28 September 2026.