CVE-2026-34155: Pengutronix Rauc

Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days.

RAUC controls the update process on embedded Linux systems. Prior to version 1.15.2, RAUC bundles using the 'plain' format exceeding a payload size of 2 GiB cause an integer overflow which results in a signature which covers only the first few bytes of the payload. Given such a bundle with a legitimate signature, an attacker can modify the part of the payload which is not covered by the signature. This issue has been patched in version 1.15.2.

Affected products

• Pengutronix Rauc: before 1.15.2 (fixed in 1.15.2)

Published 2026-03-31. Last modified 2026-07-24.