[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
uv (source, changelog)	==0.13.1 → ==0.13.4

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uv's bundled CA store trusts an emSign root whose intermediate CA keys are compromised

GHSA-hq85-5cpj-mr62

More information

Details

By default, uv verifies TLS connections against a vendored copy of the webpki-root-certs bundle. Versions before 0.13.4 include the emSign ECC Root CA - G3 root. Eight eMudhra intermediate CA certificates that chain to that root have compromised private keys, and the CA has revoked them.

An attacker with one of the compromised keys can issue certificates that uv accepts for any hostname, and can be used to issue certificates to enable MITM attacks.

uv 0.13.4 removes the root from its vendored bundle, following webpki-root-certs 1.0.10. Upgrade to 0.13.4 or later.

Severity

• CVSS Score: 9.1 / 10 (Critical)
• Vector String: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

References

• https://github.com/astral-sh/uv/security/advisories/GHSA-hq85-5cpj-mr62
• https://github.com/certifi/python-certifi/security/advisories/GHSA-6q48-6c7w-9gw2
• https://emudhra.we-have-a-problem.com
• https://groups.google.com/a/mozilla.org/g/dev-security-policy/c/0R3XLJL6FuE/m/0XofdebrAAAJ
• https://github.com/advisories/GHSA-hq85-5cpj-mr62

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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Release Notes

astral-sh/uv (uv)

v0.13.4

Compare Source

Released on 2026-10-20.

Preview features

• Validate PEP 825 variant metadata and treat package versions with invalid metadata as unavailable under wheel-variants (#​22512)

Other changes

• Update the bundled Mozilla root certificates via webpki-root-certs 1.0.10 (#​22760)

v0.13.3

Compare Source

Released on 2026-10-20.

Performance

• Avoid severe uv export slowdowns in dependency graphs with extras (#​22750)

v0.13.2

Compare Source

Released on 2026-10-19.

Enhancements

• Report all installed packages in uv workspace metadata, including packages outside the selected resolution (#​22395)
• Include supported environment restrictions when exporting pylock.toml (#​22596)
• Retry dropped GET and HEAD requests when fetching package and index data (#​22672)
• Preserve encoding declarations in wheel data scripts that require shell launchers (#​22526)
• Show causes and hints when uv python find --script cannot discover an interpreter, including with -q (#​22549)
• Print valid ksh activation instructions and support non-relocatable environments under OpenBSD-derived ksh (#​22538, #​22572)
• Allow PEP 508 direct URLs, including Mercurial and extensionless archive URLs, in uv-build's [build-system].requires validation (#​22577)

Python

• Add PyPy 3.11.17 and 3.12.15 (#​22578)

Preview features

• Fetch and parse PEP 825 index-level variant metadata with wheel-variants (#​22509, #​22511)

Performance

• Avoid exponential work when simplifying, traversing, and exporting complex dependency markers (#​22608, #​22615, #​22651, #​22674)
• Reduce the time and memory used to parse and store complex dependency markers (#​22675, #​22676, #​22681)
• Reduce resolver memory use for large dependency graphs, forks, extras, and dependency groups (#​22565, #​22625)
• Speed up project discovery in large workspaces by caching member names (#​22635)
• Reduce uv's binary size and speed up CycloneDX exports (#​22431)
• Reduce uv-build binary size, including Linux x86_64 wheels (#​22539, #​22573)
• Reduce allocations when parsing TOML (#​22679)

Bug fixes

• Respect --exclude-newer when a newer wheel for the selected source distribution is already cached (#​22685)
• Prevent URL credentials from leaking through diagnostics or persisted metadata (#​22600, #​22601, #​22617, #​22622, #​22646)
• Keep separate cache entries for signed --find-links URLs that differ only in sensitive query values (#​22630)
• Honor PEP 751 environment restrictions when installing or syncing from pylock.toml (#​22594)
• Use configured credentials before prompting during uv publish, and avoid prompting when no upload occurs (#​22593)
• Match recursive build globs against complete file paths and ignore invalid license symlinks (#​22581, #​22583)
• Return an error for invalid uv pip compile --python-version values instead of panicking (#​22727)
• Reject invalid pylock.toml output filenames before resolution instead of panicking (#​22725)
• Avoid panicking during repeated resolution conflicts involving fixed-priority packages (#​22589)
• Create version aliases correctly when installing managed Python into a relative directory (#​22547)
• Show incompatibilities from failing uv pip check invocations with -q (#​22544)
• Treat logically equivalent dependency markers as equal regardless of construction order (#​22680)

Rust API

• Require the opt-in unsafe-url feature to use raw url::Url APIs in uv-pep508 (#​22623)

Documentation

• Clarify credential lookup, environment synchronization, managed Python, and integration guidance (#​22542)

Other changes

• Use stable sh.astral.* signing identifiers for macOS binaries (#​22648)

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