deps-dev: bump uv from 0.12.17 to 0.12.18

[dependabot]

Bumps uv from 0.12.17 to 0.12.18.

Release notes

Sourced from uv's releases.

0.12.18

Release Notes

Released on 2026-09-22.

This release addresses GHSA-2cv4-cqwr-gwf7, which is a path traversal weakness during wheel installation on Windows. No other platforms are affected by this advisory.

Enhancements

• Add --output-format json to uv pip install and uv pip sync, including for --dry-run and --check (#21893)
• Add --check to uv pip install and uv pip sync to report planned changes without modifying the environment (#21844)
• Identify failures from get_requires_for_build_* hooks correctly in build errors (#21881)

Preview features

• Validate build requirements for uv build --no-build-isolation with --preview-features build-dependency-check; use --skip-dependency-check to opt out (#21880)

Performance

• Speed up uv_build editable wheel creation by omitting compression from temporary wheels (#21918)

Bug fixes

• Select package versions with wheels compatible with each Python resolution fork, correctly interpreting generic and stable-ABI wheel tags (#21835, #21836)
• Restore project, script, and lock files when uv add, uv remove, or uv version fails or is interrupted (#21860, #21856)
• Use configured dependency-metadata when checking whether installed requirements are satisfied (#21843)
• Reject archive entries that normalize to absolute Windows paths (#21923)
• Recognize distribution filenames and archive extensions when URL fragments contain ? (#21920)
• Generate correctly lowercased platform tags for BSD and Haiku releases (#21853)
• Avoid rebuilding a Windows relative path into an absolute form (#21923)

Install uv 0.12.18

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://releases.astral.sh/github/uv/releases/download/0.12.18/uv-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://releases.astral.sh/github/uv/releases/download/0.12.18/uv-installer.ps1 | iex"

Download uv 0.12.18

File	Platform	Checksum
uv-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum

... (truncated)

Changelog

Sourced from uv's changelog.

0.12.18

Released on 2026-09-22.

Enhancements

• Add --output-format json to uv pip install and uv pip sync, including for --dry-run and --check (#21893)
• Add --check to uv pip install and uv pip sync to report planned changes without modifying the environment (#21844)
• Identify failures from get_requires_for_build_* hooks correctly in build errors (#21881)

Preview features

• Validate build requirements for uv build --no-build-isolation with --preview-features build-dependency-check; use --skip-dependency-check to opt out (#21880)

Performance

• Speed up uv_build editable wheel creation by omitting compression from temporary wheels (#21918)

Bug fixes

• Select package versions with wheels compatible with each Python resolution fork, correctly interpreting generic and stable-ABI wheel tags (#21835, #21836)
• Restore project, script, and lock files when uv add, uv remove, or uv version fails or is interrupted (#21860, #21856)
• Use configured dependency-metadata when checking whether installed requirements are satisfied (#21843)
• Reject archive entries that normalize to absolute Windows paths (#21923)
• Recognize distribution filenames and archive extensions when URL fragments contain ? (#21920)
• Generate correctly lowercased platform tags for BSD and Haiku releases (#21853)
• Avoid rebuilding a Windows relative path into an absolute form (#21923)

Commits

• 01cb90c Hush some PEP 440 version warnings when dry-running Docker pushes (#21929)
• 9937fa2 Check remote wheel metadata prefetch ranges (#21919)
• 0f03963 Skip loading Python download metadata when listing installed interpreters (#2...
• 6d1b266 filter severity: labels in pr promotion automation (#21926)
• d269839 Bump version to 0.12.18 (#21924)
• 6716964 Avoid rebuilding a path into an absolute form (#21923)
• 4dd39e8 Use uncompressed editable wheels (#21918)
• 0c8da51 Add JSON output for uv pip install and uv pip sync (#21893)
• 0714322 Fix fragment boundaries in UrlString::base_str (#21920)
• 8460ef5 Share URL userinfo redaction (#21912)
• Additional commits viewable in compare view

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[github-actions]

Dependency Security Audit

Scanned: pyproject.toml dependencies + dev group, resolved at Python 3.10 (the current resolution, and the lowest versions the published specs permit under each pydantic major)

⚠️ Advisories found, but none at HIGH or CRITICAL. This does not block the build.

Severity	Count
🔶 MEDIUM	1
❔ UNKNOWN	1

Severity	Package	Installed	Fixed in	Advisory
🔶 MEDIUM	werkzeug	3.1.8	3.1.9	CVE-2026-102598
❔ UNKNOWN	werkzeug	3.1.8	3.1.9	CVE-2026-102598 (GHSA-g6x2-hccm-hh4m)

Advisory details

MEDIUM -- CVE-2026-102598 (werkzeug 3.1.8)

Found by: trivy:dev-ceiling

werkzeug: werkzeug: Denial of Service via safe_join() Windows special device paths

UNKNOWN -- CVE-2026-102598 (GHSA-g6x2-hccm-hh4m) (werkzeug 3.1.8)

Found by: pip-audit:dev-ceiling

Werkzeug's `safe_join` function allows Windows device names as filenames when they have an empty ADS marker on NTFS. This was previously reported as https://github.com/pallets/werkzeug/security/advisories/GHSA-hgf8-39gv-g3f2, but the added filtering failed to account for the fact Windows allows special device names with an empty ADS marker, such as `NUL:`. `send_from_directory` uses `safe_join` to safely serve files at user-specified paths under a directory. If the application is running on Windows and NTFS, and the requested path ends with a special device name, the file will be opened successfully, but reading will hang indefinitely.

How to fix

Raise the affected lower bound in pyproject.toml ([project].dependencies, or the pin in the dev dependency group) to at least the Fixed in version above, then run uv lock. Because this package publishes open >= ranges, the floor is what consumers can actually install -- bumping only the resolved version does not close the hole.

This audit resolves without the 7-day publish-age cooldown (exclude-newer) in [tool.uv], but uv lock applies it. If uv lock says the fixed version was filtered by exclude-newer, add exclude-newer-package = { <package> = false } under [tool.uv] in pyproject.toml, run uv lock and commit both files. Once the release is 7 days old, remove the entry and run uv lock again.

An advisory with no fix available does not block the build -- it is reported here so it can be tracked, but no version bump can resolve it. Suppression files are deliberately not honoured: the scan runs with --ignorefile /dev/null so nothing can disappear from this report silently.