Red Hat Security Advisory: OpenShift Virtualization v4.14 Images
Affects Red HatSource GCVE Database
Not known to be exploited · CVSS 6.3 Medium · fixed in Red Hat package updates : update Red Hat dompurify when convenient.
Data as of 30 Oct 2026, 22:42 UTC
- Patch
- Available – fixed in 3.4.6, 3.4.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 14 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 30 Oct 2026.
What to do
Upgrade DOMPurify to 3.4.6; dompurify to 3.4.7.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| cure53DOMPurify | Affected
| Fixed in
|
npmdompurifypkg:npm/dompurifyOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Red Hat has released updated OpenShift Virtualization v4.14 images that include fixes and enhancements. Users should ensure all previously released errata relevant to their system are applied before updating to the new images. Specific patch details are not provided, so users should follow Red Hat's official guidance at https://access.redhat.com/articles/11258 for applying updates. No additional mitigations are stated in the advisory.
Description
CVE-2026-49978 is a cross-site scripting (XSS) vulnerability in DOMPurify, a sanitization tool used in Red Hat OpenShift Virtualization v4.14 images. The flaw occurs during in-place sanitization when DOMPurify fails to properly process shadow DOM content within <template>.content elements, allowing attackers to embed malicious JavaScript that could execute when the sanitized template is used. This may lead to unauthorized actions or information disclosure in affected Red Hat products.