CVE-2026-97401 | BDVDB-2026-403627 Detail

Description#

In Kura versions <= 5.6.2, `CommandCloudApp.execute()` extracts a caller-supplied ZIP archive into a caller-supplied directory inside the Kura JVM process before dispatching the command to the executor service. On a packaged Kura installation the JVM runs as `kurad` with `CAP_DAC_OVERRIDE`, while the configurable "Unprivileged" executor drops to the `kura` user via `su`. A caller with permissions `rest.command` who is intentionally restricted to unprivileged command execution (`privileged.command.service.enable=false`, the default) can therefore set `workingDirectory` to `/` and use the ZIP body to write or overwrite arbitrary files on the device as `kurad`, completely bypassing the unprivileged sandbox the operator selected. The command service is disabled by default since Kura 4.0.0 [1]. The issue does not apply when the command service is disabled. [1] https://github.com/eclipse-kura/kura/blob/f9f969231892769a269876b23f19fa0e8173e3df/kura/distrib/RELEASE_NOTES.txt#L94

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Exploit#

History#

1. Version 12026-11-10Record published in the CVE List.