[AutoPR- Security] Patch moby-containerd-cc for CVE-2026-37236 [MEDIUM]

[Azure Linux Security Servicing Account (azurelinux-security)]

Auto Patch moby-containerd-cc for CVE-2026-37236.

Autosec pipeline run -> https://dev.azure.com/mariner-org/mariner/_build/results?buildId=1198624&view=results

CVE-2026-37236 : Single Patch Backporter Pipeline Run -> https://dev.azure.com/mariner-org/mariner/_build/results?buildId=1198641&view=results

Merge Checklist

All boxes should be checked before merging the PR (just tick any boxes which don't apply to this PR)

• The toolchain has been rebuilt successfully (or no changes were made to it)
• The toolchain/worker package manifests are up-to-date
• Any updated packages successfully build (or no packages were changed)
• Packages depending on static components modified in this PR (Golang, *-static subpackages, etc.) have had their Release tag incremented.
• Package tests (%check section) have been verified with RUN_CHECK=y for existing SPEC files, or added to new SPEC files
• All package sources are available
• cgmanifest files are up-to-date and sorted (./cgmanifest.json, ./toolkit/scripts/toolchain/cgmanifest.json, .github/workflows/cgmanifest.json)
• LICENSE-MAP files are up-to-date (./LICENSES-AND-NOTICES/SPECS/data/licenses.json, ./LICENSES-AND-NOTICES/SPECS/LICENSES-MAP.md, ./LICENSES-AND-NOTICES/SPECS/LICENSE-EXCEPTIONS.PHOTON)
• All source files have up-to-date hashes in the *.signatures.json files
• sudo make go-tidy-all and sudo make go-test-coverage pass
• Documentation has been updated to match any changes to the build system
• Ready to merge

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Summary

What does the PR accomplish, why was it needed?

• Auto Patch moby-containerd-cc for CVE-2026-37236 (MEDIUM).

Change Log

• CVE-2026-37236

Does this affect the toolchain?

YES/NO

Associated issues

• N/A

Links to CVEs

• https://nvd.nist.gov/vuln/detail/CVE-2026-37236

Test Methodology

• Pipeline build id: Buddy Build URL

[azure-pipelines]

Azure Pipelines:
There may be pipelines that require an authorized user to comment /azp run to run.

[Aditya Singh (v-aaditya)]

CVE-2026-37236 -

1. The patch matches with upstream, except the changes in files docs/docs/mapping/customizing_your_gateway.md and runtime/mux_test.go are not included as they are related to documentation and testing.
2. The Buddy Build has passed.
3. Buddy Build has passed.
4. Patch applies cleanly.
5. This patch is LGTM.

[Kanishk Bansal (Kanishk-Bansal)]

Patch Analysis (Matches Upstream except test files and .md file is absent in src tarball)

• Buddy Build 
• patch applied during the build (check rpm.log)
• patch include an upstream reference
• PR has security tag