cardano-scaling hydra up to 0.21.x exceptional condition

Summaryinfo

A vulnerability was found in cardano-scaling hydra up to 0.21.x. It has been declared as problematic. Affected by this vulnerability is an unknown functionality. The manipulation results in exceptional condition. This vulnerability was named CVE-2025-48886. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in cardano-scaling hydra up to 0.21.x. It has been classified as problematic. Affected is some unknown processing. The manipulation with an unknown input leads to a exceptional condition vulnerability. CWE is classifying the issue as CWE-755. The product does not handle or incorrectly handles an exceptional condition. This is going to have an impact on integrity. CVE summarizes:

Hydra is a layer-two scalability solution for Cardano. Prior to version 0.22.0, the process assumes L1 event finality and does not consider failed transactions. Currently, Cardano L1 is monitored for certain events which are necessary for state progression. At the moment, Hydra considers those events as finalized as soon as they are recognized by the node participants making such transactions the target of re-org attacks. The system does not currently consider the fact that failed transactions on the Cardano L1 can indeed appear in blocks because these transactions are so infrequent. This issue has been patched in version 0.22.0.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-48886 since 05/27/2025. The exploitability is told to be difficult. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 0.22.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-18921). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• cardano-scaling

Name

• hydra

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21

Website

• Product: https://github.com/cardano-scaling/hydra/

CPE 2.3info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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