CVE-2026-54326: Earendil-Works Pi

Low severity, CVSS 2.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Pi is a minimal terminal coding harness. From 0.74.0 until 0.78.1, Pi HTML exports render session Markdown into a static HTML file. It did not consistently reject unsafe Markdown link and image URL schemes. In versions with scheme filtering, C0 control characters in the URL scheme could bypass the check because browsers normalize those characters before navigation. This vulnerability is fixed in 0.78.1.

Affected products

• Earendil-Works Pi: from 0.74.0, before 0.78.1 (fixed in 0.78.1)

Published 2026-06-23. Last modified 2026-06-25.