CVSS 3.1 Score 8.1 of 10 (high)


Published Oct 4, 2023
Updated: Oct 10, 2023
CWE ID 1284


CVE-2023-42448 is a vulnerability in Hydra, the layer-two scalability solution for Cardano. Versions prior to 0.13.0 do not perform a check in the `checkClose` function of the head validator, allowing a malicious participant to modify the contestation deadline of the head. This could enable them to fanout the head without giving others a chance to contest or prevent funds locked in the head from being redistributed via a fan-out. The vulnerability affects multiple products (szJM2q, szJM2p, szJM2o, szJM2n, szJM2m, szJM2l, szJM2k, szJM2j, szJM2i, szJM2h, szJM2g, and szJM2f). The issue has been patched in version 0.13.0. The vulnerability has a high severity rating and poses a potential danger to organizations as it could lead to unauthorized modifications and potential loss of funds.

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