CVE-2021-3529

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-02 · updated 2026-06-17
Weakness: CWE-79

Description

A flaw was found in noobaa-core in versions before 5.7.0. This flaw results in the name of an arbitrarily URL being copied into an HTML document as plain text between tags, including potentially a payload script. The input was echoed unmodified in the application response, resulting in arbitrary JavaScript being injected into an application's response. The highest threat to the system is for confidentiality, availability, and integrity.

Affected products

NooBaa: before 5.7.0 — fixed in 5.7.0
Red Hat OpenShift Container Platform 4.18: 4.0

How to fix

Upgrade to a fixed version: NooBaa 5.7.0. Check the vendor advisory for mitigations.

References

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