thumbor Files

Security

This release includes fixes for multiple privately reported security issues. Users running thumbor in production are strongly encouraged to upgrade to 7.8.0.

Fixed issues include:

• file_loader path confinement bypasses that could allow reads outside FILE_LOADER_ROOT_PATH in affected configurations.
• URL signature validation bypass involving repeated or encoded hash prefixes.
• ALLOWED_SOURCES pattern hardening for string-based source restrictions.
• Denial of service fixes in the convolution filter.
• Denial of service fix in the proportion filter.

Security advisories will be published with more details and CVE/GHSA references.

What's Changed

• Remove deprecated license classifier in favor of SPDX expression by @marcelometal in https://github.com/thumbor/thumbor/pull/1738
• Bump CairoSVG to 2.8.2 by @marcelometal in https://github.com/thumbor/thumbor/pull/1737
• Bump setuptools to >=78.1.1 by @marcelometal in https://github.com/thumbor/thumbor/pull/1736
• Expand Pillow version range to allow versions up to <12.0.0 by @marcelometal in https://github.com/thumbor/thumbor/pull/1732
• Fix SyntaxWarning for invalid escape sequence in byte regex by @marcelometal in https://github.com/thumbor/thumbor/pull/1741
• Update base image from bullseye to trixie by @marcelometal in https://github.com/thumbor/thumbor/pull/1748
• chore(deps): bump actions/checkout from 4 to 5 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1749
• chore(deps): bump actions/download-artifact from 4 to 5 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1750
• chore(deps): bump pypa/gh-action-pypi-publish from 1.12.4 to 1.13.0 in /.github/workflows by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1752
• Drop support for Python 3.9 by @marcelometal in https://github.com/thumbor/thumbor/pull/1747
• chore(deps): bump actions/stale from 9 to 10 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1759
• chore(deps): bump actions/setup-python from 5 to 6 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1758
• Remove legacy .continuousrc file by @marcelometal in https://github.com/thumbor/thumbor/pull/1756
• Remove duplicate test file by @sephii in https://github.com/thumbor/thumbor/pull/1754
• Migrate legacy issue template to new YAML-based format by @marcelometal in https://github.com/thumbor/thumbor/pull/1755
• Use full SHA for third-party actions by @marcelometal in https://github.com/thumbor/thumbor/pull/1761
• Update pre-commit hooks to latest versions by @marcelometal in https://github.com/thumbor/thumbor/pull/1767
• chore(deps): bump actions/download-artifact from 5 to 6 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1769
• chore(deps): bump docker/login-action from 3.0.0 to 3.6.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1770
• chore(deps): bump github/codeql-action from 3 to 4 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1772
• chore(deps): bump docker/build-push-action from 5.0.0 to 6.18.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1771
• chore(deps): bump psf/black from 25.9.0 to 25.11.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1778
• chore(deps): bump docker/setup-buildx-action from 3.0.0 to 3.11.1 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1777
• chore(deps): bump actions/download-artifact from 6 to 7 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1782
• chore(deps): bump docker/metadata-action from 5.0.0 to 5.10.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1783
• chore(deps): bump actions/upload-artifact from 4 to 6 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1787
• chore(deps): bump docker/login-action from 3.6.0 to 3.7.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1786
• chore(deps): bump docker/setup-qemu-action from 3.6.0 to 3.7.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1780
• chore(deps): bump actions/upload-artifact from 6 to 7 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1793
• Convert setup.py to pyproject.toml following PEP 621 by @marcelometal in https://github.com/thumbor/thumbor/pull/1745
• ci: Prevent actions from running twice on PRs by @guilhermef in https://github.com/thumbor/thumbor/pull/1798
• chore(deps): bump docker/build-push-action from 6.18.0 to 6.19.2 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1791
• chore(deps): bump actions/checkout from 5 to 6 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1779
• chore(deps): bump psf/black from 25.11.0 to 26.1.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1792
• style: format code with black by @marcelometal in https://github.com/thumbor/thumbor/pull/1800
• Add AGENTS.md by @marcelometal in https://github.com/thumbor/thumbor/pull/1796
• Add SECURITY.md by @marcelometal in https://github.com/thumbor/thumbor/pull/1795
• docs: add official Docker image usage to README and hosting docs by @ritoban23 in https://github.com/thumbor/thumbor/pull/1766
• Maintain compatibility with multiple Pillow versions in ImageCms by @marcelometal in https://github.com/thumbor/thumbor/pull/1788
• fix package version metadata by @marcelometal in https://github.com/thumbor/thumbor/pull/1807
• chore(deps): bump docker/metadata-action from 5.10.0 to 6.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1811
• chore(deps): bump actions/download-artifact from 7 to 8 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1810
• chore(deps): bump docker/build-push-action from 6.19.2 to 7.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1809
• chore(deps): bump docker/login-action from 3.7.0 to 4.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1813
• chore(deps-dev): update pytest-cov requirement from <5.0.0,>=4.1.0 to >=4.1.0,<8.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1815
• chore(deps-dev): update pre-commit requirement from <4.0.0,>=3.6.0 to >=3.6.0,<5.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1812
• chore(deps-dev): update pytest-asyncio requirement from <1.0.0,>=0.23.3 to >=0.23.3,<2.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1817
• chore(deps-dev): update pillow-heif requirement from <1.0.0,>=0.22.0 to >=0.22.0,<2.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1816
• Add support to Python 3.14 by @marcelometal in https://github.com/thumbor/thumbor/pull/1775
• chore(deps-dev): update pylint requirement from <4.0.0,>=3.0.3 to >=3.0.3,<5.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1814
• chore(deps): bump pypa/cibuildwheel from 3.4.0 to 3.4.1 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1820
• chore(deps): bump docker/build-push-action from 7.0.0 to 7.1.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1821
• chore(deps): bump pypa/gh-action-pypi-publish from 1.13.0 to 1.14.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1822
• chore(deps-dev): update isort requirement from <6.0.0,>=5.13.2 to >=5.13.2,<9.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1825
• chore: make imports compatible with isort 8 by @marcelometal in https://github.com/thumbor/thumbor/pull/1829
• Remove unused webcolors direct dependency by @marcelometal in https://github.com/thumbor/thumbor/pull/1830
• chore(deps-dev): update sentry-sdk requirement from <2.0.0,>=1.39.1 to >=1.39.1,<3.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1827
• chore(deps): update pytz requirement from <2024.0.0,>=2023.3.post1 to >=2023.3.post1,<2027.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1824
• chore(deps): update pillow requirement from <12.0.0,>=10.4.0 to >=10.4.0,<13.0.0 by @dependabot[bot] in https://github.com/thumbor/thumbor/pull/1823
• Remove run-time dependency on setuptools by @cjwatson in https://github.com/thumbor/thumbor/pull/1789
• Use tuple for TIFF header startswith check by @marcelometal in https://github.com/thumbor/thumbor/pull/1831
• Add metrics for filters by @marcelometal in https://github.com/thumbor/thumbor/pull/1806
• Respect ALLOWED_SOURCES in the frame filter by @4390c336 in https://github.com/thumbor/thumbor/pull/1819
• ci: Run ARM build on matching runner by @guilhermef in https://github.com/thumbor/thumbor/pull/1799

New Contributors

• @sephii made their first contribution in https://github.com/thumbor/thumbor/pull/1754
• @ritoban23 made their first contribution in https://github.com/thumbor/thumbor/pull/1766
• @cjwatson made their first contribution in https://github.com/thumbor/thumbor/pull/1789
• @4390c336 made their first contribution in https://github.com/thumbor/thumbor/pull/1819

Full Changelog: https://github.com/thumbor/thumbor/compare/7.7.7...7.8.0