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Fix critical zlib CVE from daily vulnerability scan - #21645
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Co-authored-by: Codex <noreply@openai.com>
kbrennan-oai
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Nov 10, 2026
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Summary
Fixes the CRITICAL
CVE-2026-4738finding from the latest scheduled main build.The scan found
zlib 1.3.2-r1in seven runtime images; Alpine fixes it in1.4-r0. These Dockerfiles already upgrade runtime packages, but the cached layers predated the fixed package. Addingzlibto the explicit upgrade list invalidates those layers and guarantees the fixed package is selected.zlib1.3.2-r11.4-r0CVE-2026-4738Affected images:
components/server:dockercomponents/ide-proxy:dockercomponents/ws-manager-bridge:dockercomponents/gitpod-db:dockercomponents/image-builder-bob:dockercomponents/proxy:dockercomponents/dashboard:dockerOpen PR #21644 updates some image digests but does not invalidate all seven affected runtime layers, so it does not fully cover this finding.
Validation
zlib 1.4-r0.CVE-2026-4738matches in those three runtime base families.pre-commit run --files <changed Dockerfiles>git diff --checkA full local Leeway build was not completed because an unrelated dependency build requires the unavailable
zedexecutable before reaching these Docker targets.