EUVD-2026-64652

justhtml before 1.15.0 contains multiple security issues in URL sanitization helpers cleanurlvalue/cleanurlinjsstring, HTML serialization, Markdown passthrough htmlpassthrough=True, and several custom sanitization-policy edge cases. Depending on configuration, an attacker can bypass sanitization ...

CVE-2026-5388

justhtml (Python HTML sanitizer library) before 1.15.0 contains multiple sanitization bypass vulnerabilities across URL sanitization helpers, HTML serialization, Markdown passthrough, and custom policy edge cases. Attackers can inject active HTML and JavaScript via vectors such as encoded javascr...

PraisonAI Vulnerable to Stored XSS via Unsanitized Agent Output in HTML Rendering (nh3 Not a Required Dependency)

Summary The Flask API endpoint in src/praisonai/api.py renders agent output as HTML without effective sanitization. The sanitizehtml function relies on the nh3 library, which is not listed as a required or optional dependency in pyproject.toml. When nh3 is absent the default installation, the...

justhtml includes multiple security fixes

Summary justhtml 1.15.0 includes multiple security fixes affecting URL sanitization helpers, HTML serialization, Markdown passthrough, and several custom sanitization-policy edge cases. These issues have different impact levels and do not all affect the default configuration in the same way...

GHSA-C9VM-HV86-F23R justhtml includes multiple security fixes

Summary justhtml 1.15.0 includes multiple security fixes affecting URL sanitization helpers, HTML serialization, Markdown passthrough, and several custom sanitization-policy edge cases. These issues have different impact levels and do not all affect the default configuration in the same way...