CVE-2026-54326
Pi: Potential XSS in HTML session exports via Markdown URL sanitization bypass
CVSS Score
2.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | earendil-works |
| Product | pi |
| Published | Jun 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
earendil-works / pi
>= 0.74.0, < 0.78.1