RHSA-2026:5130
Vulnerability from csaf_redhat - Published: 2026-03-19 14:08 - Updated: 2026-03-24 15:02Summary
Red Hat Security Advisory: Kiali 2.17.5 for Red Hat OpenShift Service Mesh 3.2
Severity
Important
Notes
Topic: Kiali 2.17.5 for Red Hat OpenShift Service Mesh 3.2
This update has a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Kiali 2.17.5, for Red Hat OpenShift Service Mesh 3.2, provides observability for the service mesh by offering a visual representation of the mesh topology and metrics, helping users monitor, trace, and manage efficiently.
Security Fix(es):
* kiali-rhel9: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726)
* kiali-rhel9: Unexpected session resumption in crypto/tls (CVE-2025-68121)
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 the net/url package in the Go standard library. The package does not enforce a limit on the number of unique query parameters it parses. A Go application using the net/http.Request.ParseForm method will try to process all parameters provided in the request. A specially crafted HTTP request containing a massive number of query parameters will cause the application to consume an excessive amount of memory, eventually causing the application to crash or become unresponsive, resulting in a denial of service.
7.5 (High)
Vendor Fix
See Kiali 2.17.5 documentation at https://docs.redhat.com/en/documentation/red_hat_openshift_service_mesh/3.2/html/observability/kiali-operator-provided-by-red-hat
https://access.redhat.com/errata/RHSA-2026:5130
Workaround
Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.
During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the returned Config, or uses Config.GetConfigForClient. This can cause a client to resume a session with a server that it would not have resumed with during the initial handshake, or cause a server to resume a session with a client that it would not have resumed with during the initial handshake.
7.4 (High)
Vendor Fix
See Kiali 2.17.5 documentation at https://docs.redhat.com/en/documentation/red_hat_openshift_service_mesh/3.2/html/observability/kiali-operator-provided-by-red-hat
https://access.redhat.com/errata/RHSA-2026:5130
References
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"label": "vulnerable_code_not_present",
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{
"system_name": "Red Hat Bugzilla ID",
"text": "2434432"
}
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"notes": [
{
"category": "description",
"text": "A flaw was found in the net/url package in the Go standard library. The package does not enforce a limit on the number of unique query parameters it parses. A Go application using the net/http.Request.ParseForm method will try to process all parameters provided in the request. A specially crafted HTTP request containing a massive number of query parameters will cause the application to consume an excessive amount of memory, eventually causing the application to crash or become unresponsive, resulting in a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "golang: net/url: Memory exhaustion in query parameter parsing in net/url",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "To exploit this flaw, an attacker must be able to send a specially crafted HTTP request to an application parsing URL-encoded forms with net/url, specifically a request containing a large number of unique query parameters. The request will cause the application to consume an excessive amount of memory and eventually result in a denial of service, with no impact to confidentiality or integrity. Due to this reason, this vulnerability has been rated with an important severity.",
"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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"summary": "Canonical URL",
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{
"category": "external",
"summary": "RHBZ#2434432",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2434432"
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{
"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2025-61726"
},
{
"category": "external",
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61726"
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{
"category": "external",
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"url": "https://go.dev/cl/736712"
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{
"category": "external",
"summary": "https://go.dev/issue/77101",
"url": "https://go.dev/issue/77101"
},
{
"category": "external",
"summary": "https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc",
"url": "https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc"
},
{
"category": "external",
"summary": "https://pkg.go.dev/vuln/GO-2026-4341",
"url": "https://pkg.go.dev/vuln/GO-2026-4341"
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"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"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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"details": "Important"
}
],
"title": "golang: net/url: Memory exhaustion in query parameter parsing in net/url"
},
{
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"discovery_date": "2026-02-05T18:01:30.086058+00:00",
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]
}
],
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2437111"
}
],
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{
"category": "description",
"text": "During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the returned Config, or uses Config.GetConfigForClient. This can cause a client to resume a session with a server that it would not have resumed with during the initial handshake, or cause a server to resume a session with a client that it would not have resumed with during the initial handshake.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "crypto/tls: Unexpected session resumption in crypto/tls",
"title": "Vulnerability summary"
},
{
"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://www.cve.org/CVERecord?id=CVE-2025-68121"
},
{
"category": "external",
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},
{
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},
{
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"threats": [
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"details": "Moderate"
}
],
"title": "crypto/tls: Unexpected session resumption in crypto/tls"
}
]
}
Loading…
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Sightings
| Author | Source | Type | Date |
|---|
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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