XSS in Conda-Forge Conda-Forge.github.io
CVE-2026-55422
conda-forge is a GitHub organization containing repositories of conda recipes. In commits 85748ad2368a and prior, two React components render externally-sourced strings directly as HTML using dangerouslySetInnerHTML, with no sanitization (the project has no DOMPurify or equivalent dependency). JSON files are produced automatically by the conda-forge autotick bot (regro/cf-scripts) while it processes every conda-forge feedstock and its upstream source artifacts. The error/status strings embed raw output captured from those processes (build logs, patch output, tracebacks). The website renders them verbatim as HTML. At time of publication, there are no publicly available patches.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Conda-Forge Conda-Forge.github.io — versions <= 85748ad2368a
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-55422?
- CVE-2026-55422 is a medium-severity vulnerability in Conda-Forge Conda-Forge.github.io, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2026-10-23.
- How severe is CVE-2026-55422?
- Medium severity. CVSS v3 base score is 4.6 out of 10.