Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Affects Red HatSource GCVE Database
Not known to be exploited · CVSS 5.1 Medium : upgrade Red Hat dompurify to 3.4.13 when convenient.
Data as of 10 Nov 2026, 23:24 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.4.13
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 18 Aug 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 10 Nov 2026.
What to do
Upgrade DOMPurify and dompurify to 3.4.13.
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 RPM packages (grafana13.2-13.2.1-0.6.hum1) that fix this vulnerability. Users should apply these updates to remediate the issue. Default DOMPurify configurations are not affected, so no action is required if the default configuration is used. Refer to the Red Hat advisory RHSA-2026:70994 for detailed update instructions.
Description
A cross-site scripting (XSS) vulnerability (CVE-2026-75838) was found in the DOMPurify library used by Red Hat Hardened Images RPMs, specifically in the grafana13.2 package. The issue occurs during in-place sanitization when element-removal hooks fail to neutralize detached subtrees, allowing malicious scripts to execute via crafted HTML with event handlers. This vulnerability requires a non-default DOMPurify configuration with an element-removal hook and user interaction with malicious content. Red Hat has released updated RPMs including grafana13.2-13.2.1-0.6.hum1 to fix this issue. Default DOMPurify configurations are not affected.
References
- access.redhat.com/errata/RHSA-2026:70994 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-75838 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- images.redhat.com (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_70994.json (opens in a new tab)