chore(deps-dev): bump pymongo from 4.18.1 to 4.18.2

[dependabot]

Bumps pymongo from 4.18.1 to 4.18.2.

Release notes

Sourced from pymongo's releases.

PyMongo 4.18.2

Community notes: https://www.mongodb.com/community/forums/t/pymongo-4-18-2-released/343732

CVE-2026-96749 CVE-2026-96748 CVE-2026-96747

Changelog

Sourced from pymongo's changelog.

Changes in Version 4.18.2 (2026/09/24)

Version 4.18.2 is a bug fix release.

• Hardened the bson buffer size guard against signed integer overflow. (CVE-2026-96749_).
• Fixed connection string parsing to percent-decode each host individually. (CVE-2026-96748_).
• Client-side field level encryption now rejects a KMS endpoint ending in .sock. (CVE-2026-96747_).

.. _CVE-2026-96749: https://www.cve.org/CVERecord?id=CVE-2026-96749 .. _CVE-2026-96748: https://www.cve.org/CVERecord?id=CVE-2026-96748 .. _CVE-2026-96747: https://www.cve.org/CVERecord?id=CVE-2026-96747

Issues Resolved ...............

See the PyMongo 4.18.2 release notes in JIRA_ for the list of resolved issues in this release.

.. _PyMongo 4.18.2 release notes in JIRA: https://jira.mongodb.org/secure/ReleaseNote.jspa?projectId=10004&version=52896

Commits

• 640dd23 Prep 4.18.2 release (#3066)
• 6a0ec65 Update changelog for CVE-2026-88029 reference (#3049)
• 44be553 BUMP 4.18.2.dev0
• See full diff in compare view

[github-actions]

Codecov Results 📊

✅ 133451 passed | ⏭️ 7276 skipped | Total: 140727 | Pass Rate: 94.83% | Execution Time: 452m 9s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📈 +3059
Passed Tests	📈 +3061
Failed Tests	📉 -2
Skipped Tests	—

➖ Removed Tests (1)

View removed tests

• test_binary_content_encoding_mixed_content[False-False]
  • File: tests.integrations.litellm.test_litellm

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 2593 uncovered lines.
❌ Project coverage is 90.26%. Comparing base (f5bf69b) to head (3ba0646).

Coverage diff

@@            Coverage Diff             @@
##        master       #PR       +/-##
==========================================
- Coverage    90.29%    90.26%    -0.03%
==========================================
  Files          202       202         —
  Lines        26625     26625         —
  Branches      9926      9926         —
==========================================
+ Hits         24039     24032        -7
- Misses        2586      2593        +7
- Partials      1515      1515         —

---

Generated by Codecov Action

[alexander-alderman-webb]

Resolved by 1ca0326

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.