chore(docs): update of OEL changelog

[ory-bot]

Update OEL changelog

Summary by CodeRabbit

• Documentation

  • Added v26.2.9 release notes documenting security dependency updates across all products.

• Bug Fixes

  • Patched security vulnerabilities in dependencies across Keto, Kratos, Oathkeeper, OAuth2, and Polis.
  • Hardened identity schema validation in Kratos with size limits, nesting restrictions, self-referential checks, and invalid regex detection.
  • Enhanced SSRF protection for schema loading and HTTP cache enforcement in Kratos.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: a0a876eb-ee25-4a75-9a7b-57937ddbc72d

📥 Commits

Reviewing files that changed from the base of the PR and between d86fdb6 and 1cce770.

📒 Files selected for processing (5)

• docs/self-hosted/oel/keto/changelog/v26.2.9.md
• docs/self-hosted/oel/kratos/changelog/v26.2.9.md
• docs/self-hosted/oel/oathkeeper/changelog/v26.2.9.md
• docs/self-hosted/oel/oauth2/changelog/v26.2.9.md
• docs/self-hosted/oel/polis/changelog/v26.2.9.md

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📝 Walkthrough

Walkthrough

Five self-hosted product changelogs are updated to document the v26.2.9 release. Keto, Oathkeeper, OAuth2, and Polis record dependency-security patches; Kratos additionally documents hardened identity-schema loading with validation limits and SSRF-guarded HTTP client attachment.

Changes

Version 26.2.9 Release Documentation

Layer / File(s)	Summary
Changelog Documentation docs/self-hosted/oel/keto/changelog/v26.2.9.md, docs/self-hosted/oel/oathkeeper/changelog/v26.2.9.md, docs/self-hosted/oel/oauth2/changelog/v26.2.9.md, docs/self-hosted/oel/polis/changelog/v26.2.9.md	New v26.2.9 entries document dependency-security patches, listing bumped versions for pgx/v5, spdystream, otel, postcss, uuid, @xmldom/xmldom, and JavaScript packages with associated CVE/advisory references.
Kratos Security Hardening Documentation docs/self-hosted/oel/kratos/changelog/v26.2.9.md	v26.2.9 entry includes hardened identity-schema loading: structural validation (1 MiB size limit, 32 nesting levels, 1024 keys per object, 128 array elements, 8192 total nodes), rejection of root-resolving $ref values, early regex validation, and SSRF-guarded default HTTP client for out-of-request-context schema fetching. Also documents matching dependency-security patch updates.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Suggested reviewers

• vinckr
• aeneasr
• unatasha8
• adamwalach

Poem

🐰 Five changelogs bloom with patches fine,
Security hardened, one release line—
Kratos learns caution, schemas constrained,
While dependencies dance, vulnerabilities drained.
Version twenty-six point two point nine,
Makes the whole ecosystem shine! ✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The pull request description is minimal (only 'Update OEL changelog') and does not follow the provided template structure, missing required sections like Related Issue context and Checklist items.	Add a structured description following the template: explain what was updated in the changelogs, reference relevant issues or design documents, and complete the required checklist items.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the main change: updating OEL (Ory Enterprise Lifecycle) changelog documentation with v26.2.9 entries for multiple services.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch oel-changelog-update

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