CVE-2026-54326

LOW

Pi: Potential XSS in HTML session exports via Markdown URL sanitization bypass

Title source: cna
STIX 2.1

Description

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.

References (3)

Core 3

Scores

CVSS v3 2.5
EPSS 0.0013
EPSS Percentile 3.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (1)
earendil-works/pi >= 0.74.0, < 0.78.1
Published Jun 23, 2026
Tracked Since Jun 24, 2026