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CVE-2021-26558

7.5 · HIGH

Deserialization of Untrusted Data vulnerability of Apache ShardingSphere-UI allows an attacker to inject outer link resources.

Published Nov 11, 2021CWE-502EPSS 2.49%

Overview

CVE-2021-26558 is a high-severity vulnerability. It was published on November 11, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Deserialization of Untrusted Data vulnerability of Apache ShardingSphere-UI allows an attacker to inject outer link resources. This issue affects Apache ShardingSphere-UI Apache ShardingSphere-UI version 4.1.1 and later versions; Apache ShardingSphere-UI versions prior to 5.0.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2021/11/11/1Reflists.apache.org/thread/4gzkm1zb6c97v9gl8lcz8ll5xr8o484cRefwww.openwall.com/lists/oss-security/2021/11/11/1Reflists.apache.org/thread/4gzkm1zb6c97v9gl8lcz8ll5xr8o484c

How CyberStrike helps

Frequently asked questions

What is CVE-2021-26558?

CVE-2021-26558 is a high-severity vulnerability. It was published on November 11, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2021-26558?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-26558?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-26558?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-26558 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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