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Fencer Intel
high 7.1

CVE-2021-3529 json

A flaw was found in noobaa-core in versions before 5.7.0.

published 5y ago modified 4mo ago also EUVD-2021-26845

cvss
7.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

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.

Patch / fix

  • redhat noobaa-operator 5.7.0

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-3529 updated cvss 7.1

noobaa-core: Cross-site scripting vulnerability with noobaa management URL

  • Red Hat OpenShift Container Storage 4.8 on RHEL-8 ocs4/ocs-operator-bundle 4.8.0-5, ocs4/mcg-core-rhel8 5.8.0-38.e060925.5.8, ocs4/mcg-rhel8-operator 5.8.0-27.4a6ca5f.5.8, ocs4/cephcsi-rhel8 4.8-125.01872cc.release_4.8, ocs4/ocs-rhel8-operator 4.8-196.a35d7d7.release_4.8, ocs4/ocs-must-gather-rhel8 4.8-196.a35d7d7.release_4.8, +2 more
    fixed: vendor fix RHBA-2021:3003

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • n/a noobaa-core

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.