{"id":"EUVD-2026-38538","revision":"654cf84a21cb491a95df2edbbfebbdbc","records":[{"revision":"654cf84a21cb491a95df2edbbfebbdbc","observedAt":"2026-11-07T12:29:32.004+00:00","statement":{"source":"euvd","id":"EUVD-2026-38538","aliases":["CVE-2026-54316","GHSA-fg94-h982-f3mm"],"title":"Claude Code is an agentic coding tool.  From 0.2.54 until 2.1.163, because the hostname huggingface.co was pre-approved as a bare hostname for the WebFetch tool, any path on that domain—including attacker-controlled model repositories—was a…","description":"Claude Code is an agentic coding tool.  From 0.2.54 until 2.1.163, because the hostname huggingface.co was pre-approved as a bare hostname for the WebFetch tool, any path on that domain—including attacker-controlled model repositories—was auto-approved without a permission prompt or being subject to --allowedTools restrictions. An attacker able to inject untrusted content into a Claude Code context could direct it to issue WebFetch requests against attacker-controlled repository files (e.g. /resolve/main/config.json), which HuggingFace counts as downloads server-side, creating a covert out-of-band channel for encoding and exfiltrating data Claude can access such as files, environment variables, or command output. Reliably exploiting this required the ability to add untrusted content into a Claude Code context window. This vulnerability is fixed in 2.1.163.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":6,"severity":null}],"references":["https://github.com/anthropics/claude-code/security/advisories/GHSA-fg94-h982-f3mm"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-38538","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jun 23, 2026, 5:06:16 PM","dateUpdated":"Jun 23, 2026, 5:37:38 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-38538","identifiers":["EUVD-2026-38538","CVE-2026-54316","GHSA-fg94-h982-f3mm"]},"retained":false,"historicalAffected":[]}],"coverage":[]}