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CVE-2026-65898VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Affects Red HatSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-65898· Medium 5.1

Not known to be exploited · CVSS 5.1 Medium : upgrade Red Hat DOMPurify to 3.4.11 when convenient.

Data as of 30 Oct 2026, 00:06 UTC

CVSS 4.0 base score
5.1Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 3.4.11
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade DOMPurify and cure53/DOMPurify to 3.4.11.

Affected software

ProductAffectedFixed in
cure53DOMPurifyAffected
  • <3.4.11
Fixed in
  • 3.4.11
GitHubcure53/DOMPurifypkg:github/cure53/DOMPurifyOther threatsAffected
  • <3.4.11
Fixed in
  • 3.4.11

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat states that their Hardened Images products are not affected by the DOMPurify vulnerability and no mitigation is required for these products. For the DOMPurify issue itself, mitigation options are either unavailable or do not meet Red Hat's criteria for ease of use, applicability, or stability. Users should apply the provided RPM updates for grafana13.1 as recommended by Red Hat.

Description

A security advisory from Red Hat addresses updates to Red Hat Hardened Images RPMs, including a fix for a vulnerability in DOMPurify (CVE-2026-65902). This DOMPurify flaw allows attackers to manipulate sanitization hooks, potentially bypassing HTML sanitization and enabling cross-site scripting (XSS) attacks. However, Red Hat Hardened Images products are not affected by this vulnerability. The advisory includes updated RPM packages for grafana13.1. No known exploits are reported in the wild, and no CVSS score is provided by Red Hat.

References

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