--- title: Vulnerability and malware checks in uv | daily.dev description: Astral is announcing two new security features for uv, the Python package manager. First, `uv audit` is a new command that scans Python dependencies for known... canonical: https://daily.dev/posts/vulnerability-and-malware-checks-in-uv-wuu9roi2k twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Vulnerability and malware checks in uv | daily.dev og:description: Astral is announcing two new security features for uv, the Python package manager. First, `uv audit` is a new command that scans Python dependencies for known... og:url: https://daily.dev/posts/vulnerability-and-malware-checks-in-uv-wuu9roi2k og:image: https://api.daily.dev/og/posts/wuU9roi2k.png og:image:alt: Vulnerability and malware checks in uv og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Vulnerability and malware checks in uv **[Astral](https://daily.dev/sources/astral-sh)** · 7 min read · 47 upvotes · 5 comments ## Summary Astral is announcing two new security features for uv, the Python package manager. First, `uv audit` is a new command that scans Python dependencies for known vulnerabilities and adverse project statuses using OSV, positioning itself as a faster (4–10x) native alternative to pip-audit. Second, an experimental malware detection feature can be enabled via `UV_MALWARE_CHECK=1`, which performs a lightweight OSV-based check on every sync operation to block installation of known malicious packages before they can execute. The post explains why malware requires a different approach than vulnerability scanning — malware demands immediate remediation and can bypass PyPI quarantine via lockfile direct references to object storage. Future plans include vulnerability-aware dependency resolution, reachability-based alert filtering to reduce alert fatigue, and support for additional vulnerability backends and packaging formats. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@seyoungcho** · 2 upvotes > Yeah please don't be like npm ## Similar posts on daily.dev - [uv is the best thing to happen to the Python ecosystem in a decade](https://daily.dev/posts/uv-is-the-best-thing-to-happen-to-the-python-ecosystem-in-a-decade-14hjixazi) · Hacker News · 3 upvotes · 0 comments - [Python Supply Chain Security Made Easy](https://daily.dev/posts/python-supply-chain-security-made-easy-tuymgatoc) · Planet Python · 1 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#python](https://daily.dev/tags/python) [View this post on daily.dev](https://daily.dev/posts/vulnerability-and-malware-checks-in-uv-wuu9roi2k) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Vulnerability and malware checks in uv","url":"https://daily.dev/posts/vulnerability-and-malware-checks-in-uv-wuu9roi2k","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/vulnerability-and-malware-checks-in-uv-wuu9roi2k"},"datePublished":"2026-06-08T15:30:50.294Z","dateModified":"2026-06-09T06:20:21.850Z","description":"Astral is announcing two new security features for uv, the Python package manager. 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