RHSA-2026:54549
Vulnerability from csaf_redhat - Published: 2026-08-13 11:56 - Updated: 2026-08-29 15:32Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Critical
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
hugo:
* hugo-0.165.0-0.1.hum1 (aarch64, x86_64)
* hugo-0.165.0-0.1.hum1.src (src)
Security Fix(es):
hugo:
* CVE-2026-56852
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 golang.org/x/text. The norm.Iter component can enter an infinite loop when processing input that contains invalid UTF-8 (Unicode Transformation Format - 8-bit) bytes. A remote attacker could exploit this vulnerability by providing specially crafted input, leading to a Denial of Service (DoS) condition where the affected application becomes unresponsive.
7.5 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:hugo-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:hugo-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:hugo-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in kin-openapi. This vulnerability allows a remote attacker to bypass authentication checks. Specifically, the system incorrectly handles missing authentication configurations, substituting them with a function that does not verify user credentials. This enables unauthorized access to protected resources that should require proper authentication, compromising the application's security.
9.1 (Critical)
Affected products
Threats
Impact
Critical
References
20 references
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"text": "A flaw was found in golang.org/x/text. The norm.Iter component can enter an infinite loop when processing input that contains invalid UTF-8 (Unicode Transformation Format - 8-bit) bytes. A remote attacker could exploit this vulnerability by providing specially crafted input, leading to a Denial of Service (DoS) condition where the affected application becomes unresponsive.",
"title": "Vulnerability description"
},
{
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"text": "golang.org/x/text: golang.org/x/text: Denial of Service via invalid UTF-8 input",
"title": "Vulnerability summary"
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{
"category": "other",
"text": "Important: This flaw in the `golang.org/x/text` library can lead to a denial of service. An attacker could provide specially crafted invalid UTF-8 input to an application using the affected `norm.Iter` functionality, causing it to enter an infinite loop and become unresponsive.",
"title": "Statement"
},
{
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"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"
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-56852"
},
{
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56852"
},
{
"category": "external",
"summary": "https://go.dev/cl/794100",
"url": "https://go.dev/cl/794100"
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{
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"summary": "https://go.dev/issue/80142",
"url": "https://go.dev/issue/80142"
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{
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"summary": "https://pkg.go.dev/vuln/GO-2026-5970",
"url": "https://pkg.go.dev/vuln/GO-2026-5970"
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"baseScore": 7.5,
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"title": "golang.org/x/text: golang.org/x/text: Denial of Service via invalid UTF-8 input"
},
{
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"cwe": {
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},
"discovery_date": "2026-08-12T21:41:02.246848+00:00",
"ids": [
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"notes": [
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "github.com/getkin/kin-openapi: kin-openapi: kin-openapi: ValidationHandler.Load() Fail-Open Authentication Bypass via NoopAuthenticationFunc Default",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This Critical flaw in `kin-openapi` allows unauthenticated attackers to bypass API security enforcement in applications utilizing `ValidationHandler` without an explicitly configured authentication function. This can lead to unauthorized access to protected API endpoints, as the default behavior silently permits requests without credential validation.",
"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"
}
],
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"url": "https://github.com/getkin/kin-openapi/releases/tag/v0.144.0"
},
{
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"url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-r277-6w6q-xmqw"
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"Red Hat Hardened Images:hugo-main@src",
"Red Hat Hardened Images:hugo-main@x86_64"
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"scores": [
{
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"products": [
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"Red Hat Hardened Images:hugo-main@src",
"Red Hat Hardened Images:hugo-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Critical"
}
],
"title": "github.com/getkin/kin-openapi: kin-openapi: kin-openapi: ValidationHandler.Load() Fail-Open Authentication Bypass via NoopAuthenticationFunc Default"
}
]
}
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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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