fix: update virtualenv requirement from <=21.0.0 to <=21.2.4

[dependabot]

Updates the requirements on virtualenv to permit the latest version.

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

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)

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... (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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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	virtualenv@​21.0.0 ⏵ 21.2.4

View full report

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

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[deepsource-io]

DeepSource Code Review

We reviewed changes in 75beeef...d5abf5d on this pull request. Below is the summary for the review, and you can see the individual issues we found as inline review comments.

See full review on DeepSource ↗

PR Report Card

Overall Grade

Security   Reliability   Complexity   Hygiene

Code Review Summary

Analyzer	Status	Updated (UTC)	Details
Python		Apr 15, 2026 1:08p.m.	Review ↗

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[dependabot]

Superseded by #116.