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CVE-2025-26413: Apache Kvrocks: The server was crashed by the negative offset

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-22 · updated 2026-06-17
• Weakness: CWE-20

Description

Improper Input Validation vulnerability in Apache Kvrocks. The SETRANGE command didn't check if the `offset` input is a positive integer and use it as an index of a string. So it will cause the server to crash due to its index is  out of range. This issue affects Apache Kvrocks: through 2.11.1. Users are recommended to upgrade to version 2.12.0, which fixes the issue.

Affected products

• Apache Software Foundation Apache Kvrocks: before 2.12.0 — fixed in 2.12.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Kvrocks 2.12.0. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread/388743qrr8yq8qm0go8tls6rf1kog8dw
• http://www.openwall.com/lists/oss-security/2025/04/22/1

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