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.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-7v5m-pr3q-6453 Pi Agent: Potential XSS in HTML session exports via Markdown URL sanitization bypass
Fixes

Solution

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Workaround

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History

Tue, 23 Jun 2026 19:45:00 +0000

Type Values Removed Values Added
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.
Title Pi: Potential XSS in HTML session exports via Markdown URL sanitization bypass
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 2.5, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-23T19:26:35.875Z

Reserved: 2026-06-12T18:42:02.224Z

Link: CVE-2026-54326

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses