# justhtml (PyPI) vulnerabilities

Source: https://junglewise.ai/threats/technologies/justhtml  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/justhtml.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 12 vulnerabilities in justhtml (PyPI): 0 in the last 7 days and 12 in the last 90 days, 3 of them critical and 0 exploited in the wild. The most recent, justhtml uncontrolled recursion DoS via deeply nested HTML, was published on 23 August 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 12
- All time: 12 (3 critical, 0 exploited in the wild)

## About justhtml (PyPI)

A Python library for generating HTML documents using Pythonic syntax.

## Latest justhtml (PyPI) vulnerabilities

- [justhtml uncontrolled recursion DoS via deeply nested HTML](https://junglewise.ai/threats/justhtml-uncontrolled-recursion-dos-via-deeply-nested-html-26591bb6) (high, CVSS 7.5, published 23 Aug 2026)
- [CVE-2026-9769: JustHTML uncontrolled recursion DoS via deeply nested HTML](https://junglewise.ai/threats/cve-2026-9769-justhtml-uncontrolled-recursion-dos-via-deeply-nested-html) (high, CVSS 7.5, published 23 Aug 2026)
- [CVE-2026-8630: justhtml mutation XSS in raw-text element serialization](https://junglewise.ai/threats/cve-2026-8630-justhtml-mutation-xss-in-raw-text-element-serialization) (medium, CVSS 6.1, published 23 Aug 2026)
- [CVE-2026-8445: justhtml HTML escaping bypass in Markdown conversion](https://junglewise.ai/threats/cve-2026-8445-justhtml-html-escaping-bypass-in-markdown-conversion) (critical, CVSS 9.8, published 23 Aug 2026)
- [CVE-2026-7808: justhtml HTML sanitization bypass leading to XSS](https://junglewise.ai/threats/cve-2026-7808-justhtml-html-sanitization-bypass-leading-to-xss) (critical, CVSS 9.8, published 23 Aug 2026)
- [CVE-2026-77088: justhtml to_markdown() cross-site scripting in code span](https://junglewise.ai/threats/cve-2026-77088-justhtml-to-markdown-cross-site-scripting-in-code-span) (medium, CVSS 6.1, published 23 Aug 2026)
- [CVE-2026-74793: justhtml cross-site scripting in selectedcontent projection](https://junglewise.ai/threats/cve-2026-74793-justhtml-cross-site-scripting-in-selectedcontent-projection) (medium, CVSS 6.1, published 23 Aug 2026)
- [CVE-2026-6827: justhtml multiple sanitization and DOM handling vulnerabilities](https://junglewise.ai/threats/cve-2026-6827-justhtml-multiple-sanitization-and-dom-handling-vulnerabilities) (medium, CVSS 6.1, published 23 Aug 2026)
- [CVE-2026-5751: justhtml mutation cross-site scripting in custom sanitization policies](https://junglewise.ai/threats/cve-2026-5751-justhtml-mutation-cross-site-scripting-in-custom-sanitization) (medium, CVSS 6.1, published 23 Aug 2026)
- [CVE-2026-5389: justhtml to_markdown() cross-site scripting via code fence breakout](https://junglewise.ai/threats/cve-2026-5389-justhtml-to-markdown-cross-site-scripting-via-code-fence-breakout) (medium, CVSS 6.1, published 23 Aug 2026)
- [CVE-2026-5388: justhtml multiple security issues in URL sanitization and HTML serialization](https://junglewise.ai/threats/cve-2026-5388-justhtml-multiple-security-issues-in-url-sanitization-and-html) (critical, CVSS 9.8, published 23 Aug 2026)
- [CVE-2026-4671: justhtml denial-of-service in CSS selector handling and linkification](https://junglewise.ai/threats/cve-2026-4671-justhtml-denial-of-service-in-css-selector-handling-and) (high, CVSS 7.5, published 23 Aug 2026)

## Most severe justhtml (PyPI) vulnerabilities

- [CVE-2026-8445: justhtml HTML escaping bypass in Markdown conversion](https://junglewise.ai/threats/cve-2026-8445-justhtml-html-escaping-bypass-in-markdown-conversion) (critical, CVSS 9.8, published 23 Aug 2026)
- [CVE-2026-7808: justhtml HTML sanitization bypass leading to XSS](https://junglewise.ai/threats/cve-2026-7808-justhtml-html-sanitization-bypass-leading-to-xss) (critical, CVSS 9.8, published 23 Aug 2026)
- [CVE-2026-5388: justhtml multiple security issues in URL sanitization and HTML serialization](https://junglewise.ai/threats/cve-2026-5388-justhtml-multiple-security-issues-in-url-sanitization-and-html) (critical, CVSS 9.8, published 23 Aug 2026)
- [CVE-2026-4671: justhtml denial-of-service in CSS selector handling and linkification](https://junglewise.ai/threats/cve-2026-4671-justhtml-denial-of-service-in-css-selector-handling-and) (high, CVSS 7.5, published 23 Aug 2026)
- [CVE-2026-9769: JustHTML uncontrolled recursion DoS via deeply nested HTML](https://junglewise.ai/threats/cve-2026-9769-justhtml-uncontrolled-recursion-dos-via-deeply-nested-html) (high, CVSS 7.5, published 23 Aug 2026)
- [justhtml uncontrolled recursion DoS via deeply nested HTML](https://junglewise.ai/threats/justhtml-uncontrolled-recursion-dos-via-deeply-nested-html-26591bb6) (high, CVSS 7.5, published 23 Aug 2026)
- [CVE-2026-74793: justhtml cross-site scripting in selectedcontent projection](https://junglewise.ai/threats/cve-2026-74793-justhtml-cross-site-scripting-in-selectedcontent-projection) (medium, CVSS 6.1, published 23 Aug 2026)
- [CVE-2026-8630: justhtml mutation XSS in raw-text element serialization](https://junglewise.ai/threats/cve-2026-8630-justhtml-mutation-xss-in-raw-text-element-serialization) (medium, CVSS 6.1, published 23 Aug 2026)
- [CVE-2026-77088: justhtml to_markdown() cross-site scripting in code span](https://junglewise.ai/threats/cve-2026-77088-justhtml-to-markdown-cross-site-scripting-in-code-span) (medium, CVSS 6.1, published 23 Aug 2026)
- [CVE-2026-6827: justhtml multiple sanitization and DOM handling vulnerabilities](https://junglewise.ai/threats/cve-2026-6827-justhtml-multiple-sanitization-and-dom-handling-vulnerabilities) (medium, CVSS 6.1, published 23 Aug 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 12 | 3 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other PyPI technologies

- [tensorflow (PyPI)](https://junglewise.ai/threats/technologies/pypi-tensorflow): 435 vulnerabilities
- [tensorflow-cpu (PyPI)](https://junglewise.ai/threats/technologies/tensorflow-cpu): 430 vulnerabilities
- [tensorflow-gpu (PyPI)](https://junglewise.ai/threats/technologies/tensorflow-gpu): 427 vulnerabilities
- [open-webui (PyPI)](https://junglewise.ai/threats/technologies/open-webui): 177 vulnerabilities
- [Django (PyPI)](https://junglewise.ai/threats/technologies/django): 173 vulnerabilities
- [apache-airflow (PyPI)](https://junglewise.ai/threats/technologies/apache-airflow): 159 vulnerabilities
- [pillow (PyPI)](https://junglewise.ai/threats/technologies/pillow): 125 vulnerabilities
- [praisonai (PyPI)](https://junglewise.ai/threats/technologies/pypi-praisonai): 120 vulnerabilities
- [vllm (PyPI)](https://junglewise.ai/threats/technologies/pypi-vllm): 117 vulnerabilities
- [plone (PyPI)](https://junglewise.ai/threats/technologies/pypi-plone): 101 vulnerabilities
- [mlflow (PyPI)](https://junglewise.ai/threats/technologies/mlflow): 88 vulnerabilities
- [picklescan (PyPI)](https://junglewise.ai/threats/technologies/picklescan): 86 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "justhtml (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/justhtml, 13 November 2026.