build(deps): bump virtualenv from 20.39.0 to 21.2.4

[dependabot]

Bumps virtualenv from 20.39.0 to 21.2.4.

Release notes

Sourced from virtualenv's releases.

21.2.4

What's Changed

• 🐛 fix(periodic-update): refuse unverified HTTPS to PyPI by default by @​gaborbernat in pypa/virtualenv#3122
• 🐛 fix(zipapp): enforce ROOT containment with Path.relative_to by @​gaborbernat in pypa/virtualenv#3121
• 🐛 fix(seed): validate distribution and version before pip download by @​gaborbernat in pypa/virtualenv#3120
• 🐛 fix(seed): verify sha256 of bundled wheels on load by @​gaborbernat in pypa/virtualenv#3119
• 🐛 fix(seed): validate wheel zip entries before extraction by @​gaborbernat in pypa/virtualenv#3118

Full Changelog: pypa/virtualenv@21.2.3...21.2.4

21.2.3

Full Changelog: pypa/virtualenv@21.2.2...21.2.3

21.2.2

What's Changed

• bump python-discovery minimum to 1.2.2 by @​rahuldevikar in pypa/virtualenv#3117

Full Changelog: pypa/virtualenv@21.2.1...21.2.2

21.2.1

What's Changed

• Upgrade embedded pip/setuptools/wheel by @​github-actions[bot] in pypa/virtualenv#3093
• Enhance upgrade workflow: age check, dedup, issue tracking by @​rahuldevikar in pypa/virtualenv#3094
• 🐛 fix(create): use commonpath for correct path validation by @​gaborbernat in pypa/virtualenv#3097
• 🔒 ci(workflows): add zizmor security auditing by @​gaborbernat in pypa/virtualenv#3099
• Add current and previous maintainers by @​rahuldevikar in pypa/virtualenv#3101
• 🔧 fix(ci): restore git credentials for release and upgrade jobs by @​gaborbernat in pypa/virtualenv#3102
• Fix broken Installation link in README by @​Bahtya in pypa/virtualenv#3106
• fix: use terminal width for help formatting instead of hardcoded 240 by @​Bahtya in pypa/virtualenv#3110
• 🐛 fix(nushell): surface actionable hint in deactivate error output by @​gaborbernat in pypa/virtualenv#3112
• 👷 ci: fix setup-uv warnings and drop brew@3.9 by @​gaborbernat in pypa/virtualenv#3113
• fix(ci): fix pre-release push and release note generation by @​gaborbernat in pypa/virtualenv#3114
• fix(ci): check out repo in publish job for gh release notes by @​gaborbernat in pypa/virtualenv#3115

New Contributors

• @​github-actions[bot] made their first contribution in pypa/virtualenv#3093
• @​Bahtya made their first contribution in pypa/virtualenv#3106

... (truncated)

Changelog

Sourced from virtualenv's changelog.

Bugfixes - 21.2.4

• Security hardening: validate each entry of a seed wheel archive before extracting it so a tampered wheel cannot escape the app-data image directory via an absolute path or .. traversal. (:issue:3118)
• Security hardening: verify the SHA-256 of every bundled seed wheel when it is loaded so a corrupted or tampered file on disk fails loud instead of being handed to pip. The hash table is generated alongside BUNDLE_SUPPORT by tasks/upgrade_wheels.py. (:issue:3119)
• Security hardening: validate the distribution name and version specifier passed to pip download when acquiring a seed wheel so extras, pip flags, or shell metacharacters cannot be smuggled into the subprocess command line. (:issue:3120)
• Security hardening: replace the string-prefix containment check in virtualenv.util.zipapp with Path.relative_to so the zipapp extraction helpers refuse any path that does not resolve under the archive root. (:issue:3121)
• Security hardening: do not silently fall back to an unverified HTTPS context when the periodic update request to PyPI fails TLS verification. The returned metadata drives which wheel version virtualenv considers "up to date", so accepting an unverified response lets a network-level attacker suppress security updates. Set VIRTUALENV_PERIODIC_UPDATE_INSECURE=1 to restore the previous behavior on hosts with broken trust stores. (:issue:3122)

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v21.2.3 (2026-04-14)

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No significant changes.

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v21.2.2 (2026-04-13)

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Bugfixes - 21.2.2

• Bump python-discovery minimum to >=1.2.2 to include normalize_isa support - by :user:rahuldevikar. (:issue:3117)

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v21.2.1 (2026-04-09)

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Bugfixes - 21.2.1

• Upgrade embedded wheels:

  • setuptools to 82.0.1 from 82.0.0 (:issue:3093)

• Use terminal width for help formatting instead of hardcoded 240. (:issue:3110)

---

... (truncated)

Commits

• 15063c1 release 21.2.4
• 754602d 🐛 fix(seed): validate wheel zip entries before extraction (#3118)
• 43deabf 🐛 fix(seed): verify sha256 of bundled wheels on load (#3119)
• 4e412b0 🐛 fix(seed): validate distribution and version before pip download (#3120)
• 1309818 🐛 fix(zipapp): enforce ROOT containment with Path.relative_to (#3121)
• 48f6fdc 🐛 fix(periodic-update): refuse unverified HTTPS to PyPI by default (#3122)
• a5fb4a2 release 21.2.3
• 7f91a9a release 21.2.2
• 33348d6 bump python-discovery minimum to 1.2.2 (#3117)
• d73ff7c [pre-commit.ci] pre-commit autoupdate (#3116)
• Additional commits viewable in compare view

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