Comment on Podman rootless containers and the Copy Fail exploitparentComments−raesene94moI've had claude knock up a basic podman PoC, that seems to work ok https://github.com/raesene/vuln_pocs/tree/main/CVE-2026-3143... . It just uses a read-only mount and then demonstrates overwriting that read-only file.Key point for testing exploitability is kernel version, package versions (in case they ship a patch) and loaded kernel modules. Some stripped down environments don't have the relevant modules available.
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I've had claude knock up a basic podman PoC, that seems to work ok https://github.com/raesene/vuln_pocs/tree/main/CVE-2026-3143... . It just uses a read-only mount and then demonstrates overwriting that read-only file.
Key point for testing exploitability is kernel version, package versions (in case they ship a patch) and loaded kernel modules. Some stripped down environments don't have the relevant modules available.