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Bump the python-security group across 1 directory with 2 updates - #3751
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Bumps the python-security group with 2 updates in the / directory: [pillow](https://github.com/python-pillow/Pillow) and [certifi](https://github.com/certifi/python-certifi). Updates `pillow` from 12.3.0 to 13.0.0 - [Release notes](https://github.com/python-pillow/Pillow/releases) - [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst) - [Commits](python-pillow/Pillow@12.3.0...13.0.0) Updates `certifi` from 2025.8.3 to 2026.10.19 - [Commits](certifi/python-certifi@2025.08.03...2026.10.19) --- updated-dependencies: - dependency-name: pillow dependency-version: 13.0.0 dependency-type: direct:development dependency-group: python-security - dependency-name: certifi dependency-version: 2026.10.19 dependency-type: indirect dependency-group: python-security ... Signed-off-by: dependabot[bot] <support@github.com>
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LGTM — lock-only Dependabot bump of certifi (2025.8.3 -> 2026.10.19) and pillow (12.3.0 -> 13.0.0); no bugs found.
What was reviewed
- Lock entries: all 85 rewritten artifact URLs are on files.pythonhosted.org and are named for the new versions. pillow 13 wheels cover cp311-cp315 on Linux and Windows, matching the CI matrix. The
pyproject.tomlspecifiers and theirrequires-distmirrors are unchanged. Hashes were not compared against PyPI (no network here); uv checks them at install, so a mismatch fails CI. - pillow major bump: the only PIL consumer is
examples/snippets/servers/images.py(Image.open,thumbnail,tobytes). None of these is among the 13.0.0 removals or deprecations named in the release notes quoted in the PR description (the quoted notes are truncated), so I don't expect new warnings underfilterwarnings = error. - Release age, ruled out: both releases (uploaded 2026-10-16 and 2026-10-20) are inside the 14-day cooldown in
.github/dependabot.yml, but this is thepython-securitygroup, and Dependabot's cooldown does not apply to security updates.
Extended reasoning...
The change touches only uv.lock (89 insertions, 84 deletions) in a single Dependabot commit, re-pinning transitive certifi and dev-group pillow. No source, test, docs or pyproject.toml changes, so published requirements are unaffected. The only security-relevant surface is supply-chain integrity of the lock: every new artifact URL is a PyPI-hosted file named for the bumped version, and uv enforces the hashes at install. Approval was decided by the mechanical nature of the bump, the single trivial PIL consumer in an example snippet, the absence of a CODEOWNERS file, and no reviews or objections in the timeline.
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Bumps the python-security group with 2 updates in the / directory: pillow and certifi.
Updates
pillowfrom 12.3.0 to 13.0.0Release notes
Sourced from pillow's releases.
... (truncated)
Commits
293218a13.0.0 version bump262e8e4Update release notes for Pillow 13.0.0 (#10223)af56aceValidate TIFF tag values against libtiff's own field definition before TIFFSe...570df03Validate TIFF tag values against libtiff's own field definition before TIFFSe...53318b5Take libtiff scanline geometry tags from the image, not tiffinfo/exif (#10226)0a87417Bound retained TIFF tag data by stream size (#10225)11582e5Fix heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIO (#10224)8501adcFix testec5f1cbTake libtiff scanline geometry tags from the image, not tiffinfo/exif4b63dffShare TIFF tag data budget across framesUpdates
certififrom 2025.8.3 to 2026.10.19Commits
662df63Restore unaffected emSign roots (#439) (#440)5cb238cRemove emsign (#437)69494a7Bump actions/download-artifact from 8.0.1 to 8.0.2 (#436)029c7b0Bump actions/upload-artifact from 7.0.1 to 7.0.2 (#435)9d0a8f1Add support for Python 3.15 (#432)db472abBump pypa/gh-action-pypi-publish from 1.14.1 to 1.14.2 (#431)f4bc6762026.07.22 (#428)4c91f9cBump actions/setup-python from 6.3.0 to 7.0.0 (#427)01a66c5Bump actions/checkout from 7.0.0 to 7.0.1 (#426)eb355f4Bump pypa/gh-action-pypi-publish from 1.14.0 to 1.14.1 (#425)Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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@dependabot rebasewill rebase this PR@dependabot recreatewill recreate this PR, overwriting any edits that have been made to it@dependabot show <dependency name> ignore conditionswill show all of the ignore conditions of the specified dependency@dependabot ignore <dependency name> major versionwill close this group update PR and stop Dependabot creating any more for the specific dependency's major version (unless you unignore this specific dependency's major version or upgrade to it yourself)@dependabot ignore <dependency name> minor versionwill close this group update PR and stop Dependabot creating any more for the specific dependency's minor version (unless you unignore this specific dependency's minor version or upgrade to it yourself)@dependabot ignore <dependency name>will close this group update PR and stop Dependabot creating any more for the specific dependency (unless you unignore this specific dependency or upgrade to it yourself)@dependabot unignore <dependency name>will remove all of the ignore conditions of the specified dependency@dependabot unignore <dependency name> <ignore condition>will remove the ignore condition of the specified dependency and ignore conditionsYou can disable automated security fix PRs for this repo from the Security Alerts page.