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fix(sandbox): run apk upgrade in sandbox-guest image - #3664
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timflannagan merged 1 commit intoNov 12, 2026
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Upgrade the Alpine packages in the sandbox-guest runtime image so it picks up OS security fixes published after the base image was built. Previously, the guest image only ran apk add, so it shipped the base image's package versions as-is. The Claude and Codex harness images already run apk upgrade since kagent-dev#2756, but the guest Dockerfile was added later without it and showed more CVEs in image scans. Now the guest image runs apk upgrade before installing its packages, matching the harness images. Signed-off-by: timflannagan <[email protected]>
shashankram
approved these changes
Nov 12, 2026
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Description
The sandbox-guest runtime image only ran
apk add, so it shipped the Alpine base image's package versions as-is and showed more CVEs in image scans than the Claude and Codex harness images. Those images have runapk upgradesince #2756; the guest Dockerfile was added afterwards without it.This adds
apk upgrade --no-cachebefore the package install, matching the harness images.