RHSA-2026:58502
Vulnerability from csaf_redhat - Published: 2026-08-22 14:06 - Updated: 2026-08-24 11:15Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
grafana13.1:
* grafana13.1-13.1.3-0.1.3.hum1 (aarch64, x86_64)
* grafana13.1-13.1.3-0.1.3.hum1.src (src)
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in DOMPurify. When the `setConfig()` function is used with an `uponSanitizeAttribute` hook, the `ALLOWED_ATTR` allowlist is not properly cloned. This allows an attacker to register a hook that can permanently modify the shared allowlist, enabling the conditional allowance of dangerous attributes. Consequently, an attacker can submit untrusted content that inherits the polluted allowlist, leading to stored Cross-site Scripting (XSS) and the execution of event handlers.
5.4 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A flaw was found in DOMPurify where the clearConfig() function does not properly reset the retained Trusted Types policy. This can lead to a DOMPurify instance, when reused across different security contexts, remaining bound to a previously supplied and potentially unsafe policy. An attacker could leverage this to execute malicious scripts, resulting in client-side arbitrary code execution.
6.1 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A flaw was found in DOMPurify. This cross-site scripting (XSS) vulnerability exists in IN_PLACE mode, where the software trusts attacker-controlled nodeName on live non-form nodes. A remote attacker can supply hostile live Document Object Model (DOM) objects with script children. These scripts can execute when the sanitized tree is inserted into a live document, potentially leading to information disclosure or arbitrary code execution.
6.1 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A flaw was found in DOMPurify. An attacker can exploit a vulnerability in how DOMPurify handles its sanitization hooks when default configurations are used. By manipulating the uponSanitizeElement or uponSanitizeAttribute hooks, an attacker can permanently alter the allowed HTML tags and attributes. This allows malicious content to bypass sanitization, potentially leading to cross-site scripting (XSS) attacks and compromising the integrity of web applications.
6.1 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:grafana13-1-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
References
34 references
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"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
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}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "dompurify: DOMPurify: Client-side arbitrary code execution due to improper Trusted Types policy reset"
},
{
"cve": "CVE-2026-65901",
"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
},
"discovery_date": "2026-07-23T14:01:23.186814+00:00",
"ids": [
{
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"text": "2506432"
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"notes": [
{
"category": "description",
"text": "A flaw was found in DOMPurify. This cross-site scripting (XSS) vulnerability exists in IN_PLACE mode, where the software trusts attacker-controlled nodeName on live non-form nodes. A remote attacker can supply hostile live Document Object Model (DOM) objects with script children. These scripts can execute when the sanitized tree is inserted into a live document, potentially leading to information disclosure or arbitrary code execution.",
"title": "Vulnerability description"
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"text": "dompurify: DOMPurify: Cross-site scripting vulnerability via attacker-controlled nodeName",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This cross-site scripting (XSS) vulnerability in DOMPurify arises when the library is used with `IN_PLACE: true` on attacker-supplied live DOM nodes. An attacker can manipulate a script child node\u0027s `nodeName` to bypass sanitization, leading to arbitrary script execution when the sanitized tree is inserted into a live document. This impacts Red Hat products that process untrusted live DOM content using DOMPurify in this specific configuration.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-65901"
},
{
"category": "external",
"summary": "RHBZ#2506432",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506432"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-65901",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-65901"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-65901",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65901"
},
{
"category": "external",
"summary": "https://github.com/cure53/DOMPurify/security/advisories/GHSA-x4vx-rjvf-j5p4",
"url": "https://github.com/cure53/DOMPurify/security/advisories/GHSA-x4vx-rjvf-j5p4"
},
{
"category": "external",
"summary": "https://www.vulncheck.com/advisories/dompurify-cross-site-scripting-via-in-place-nodename",
"url": "https://www.vulncheck.com/advisories/dompurify-cross-site-scripting-via-in-place-nodename"
}
],
"release_date": "2026-07-23T13:16:19.721000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-08-22T14:06:09+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:grafana13-1-main@aarch64",
"Red Hat Hardened Images:grafana13-1-main@src",
"Red Hat Hardened Images:grafana13-1-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:58502"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
"product_ids": [
"Red Hat Hardened Images:grafana13-1-main@aarch64",
"Red Hat Hardened Images:grafana13-1-main@src",
"Red Hat Hardened Images:grafana13-1-main@x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:grafana13-1-main@aarch64",
"Red Hat Hardened Images:grafana13-1-main@src",
"Red Hat Hardened Images:grafana13-1-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "dompurify: DOMPurify: Cross-site scripting vulnerability via attacker-controlled nodeName"
},
{
"cve": "CVE-2026-65902",
"cwe": {
"id": "CWE-915",
"name": "Improperly Controlled Modification of Dynamically-Determined Object Attributes"
},
"discovery_date": "2026-07-23T14:01:18.981314+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2506431"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in DOMPurify. An attacker can exploit a vulnerability in how DOMPurify handles its sanitization hooks when default configurations are used. By manipulating the uponSanitizeElement or uponSanitizeAttribute hooks, an attacker can permanently alter the allowed HTML tags and attributes. This allows malicious content to bypass sanitization, potentially leading to cross-site scripting (XSS) attacks and compromising the integrity of web applications.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "dompurify: DOMPurify: Sanitization bypass via hook manipulation",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This flaw in DOMPurify allows an attacker to bypass sanitization by manipulating internal hooks, leading to potential cross-site scripting (XSS) vulnerabilities. The issue permanently alters the default allow-lists for the DOMPurify instance when default configurations are used. Red Hat products, including Red Hat Hardened Images, are not affected by this vulnerability.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Hardened Images:grafana13-1-main@aarch64",
"Red Hat Hardened Images:grafana13-1-main@src",
"Red Hat Hardened Images:grafana13-1-main@x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-65902"
},
{
"category": "external",
"summary": "RHBZ#2506431",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506431"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-65902",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-65902"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-65902",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65902"
},
{
"category": "external",
"summary": "https://github.com/cure53/DOMPurify/commit/7996f1dc78eb8b7922388aed75d94a9f8fad9a36",
"url": "https://github.com/cure53/DOMPurify/commit/7996f1dc78eb8b7922388aed75d94a9f8fad9a36"
},
{
"category": "external",
"summary": "https://github.com/cure53/DOMPurify/security/advisories/GHSA-76mc-f452-cxcm",
"url": "https://github.com/cure53/DOMPurify/security/advisories/GHSA-76mc-f452-cxcm"
},
{
"category": "external",
"summary": "https://www.vulncheck.com/advisories/dompurify-before-hook-mutation-pollution-via-allowedtags",
"url": "https://www.vulncheck.com/advisories/dompurify-before-hook-mutation-pollution-via-allowedtags"
}
],
"release_date": "2026-07-23T13:16:20.528000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-08-22T14:06:09+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:grafana13-1-main@aarch64",
"Red Hat Hardened Images:grafana13-1-main@src",
"Red Hat Hardened Images:grafana13-1-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:58502"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
"product_ids": [
"Red Hat Hardened Images:grafana13-1-main@aarch64",
"Red Hat Hardened Images:grafana13-1-main@src",
"Red Hat Hardened Images:grafana13-1-main@x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:grafana13-1-main@aarch64",
"Red Hat Hardened Images:grafana13-1-main@src",
"Red Hat Hardened Images:grafana13-1-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "dompurify: DOMPurify: Sanitization bypass via hook manipulation"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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