RHSA-2026:68729
Vulnerability from csaf_redhat - Published: 2026-09-17 19:37 - Updated: 2026-11-13 13:40Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
helm4:
* helm4-4.3.0-0.2.hum1 (aarch64, x86_64)
* helm4-4.3.0-0.2.hum1.src (src)
Security Fix(es):
helm4:
* CVE-2026-81871
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. An attacker can cause a Denial of Service (DoS) by submitting specially crafted input to an application utilizing the Nickname profile. When transforming this input into an undersized destination buffer, an out-of-bounds slice indexing error occurs, causing the application to panic and crash.
7.5 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
A flaw was found in the klauspost/compress package. A remote attacker can exploit this vulnerability by supplying a specially crafted compression dictionary with an excessively large repeat value, triggering an integer overflow. When the dictionary is subsequently processed, this overflow leads to out-of-bounds memory access, crashing the application and resulting in a Denial of Service (DoS).
7.5 (High)
Affected products
Fixed
3 products, the same list as for
CVE-2026-56851
Threats
Impact
Important
A flaw was found in OpenTelemetry-Go, specifically within its gRPC log exporter. This vulnerability allows a network attacker to bypass the intended private Certificate Authority (CA) pinning and mutual Transport Layer Security (TLS) configurations. The issue arises because the environment-only TLS path incorrectly uses system-trusted certificates instead of the application's configured client certificates. This bypass enables an attacker to intercept and spoof the collector connection, potentially leading to the unauthorized reading or alteration of sensitive log telemetry.
6.5 (Medium)
Affected products
Fixed
3 products, the same list as for
CVE-2026-56851
Threats
Impact
Moderate
A flaw was found in the OpenTelemetry-Go `BatchingProcessor` component. A remote attacker can exploit this by sending a high volume of log emissions, which can fill the asynchronous export buffer. This causes the processor to enter a tight CPU loop, repeatedly retrying to export logs without proper waiting mechanisms. The consequence is the exhaustion of CPU resources, leading to a degradation or denial of service (DoS) in the affected application.
5.3 (Medium)
Affected products
Fixed
3 products, the same list as for
CVE-2026-56851
Threats
Impact
Moderate
A flaw was found in the `go-openapi/swag` library's `jsonutils` component. This vulnerability, caused by uncontrolled recursion during ordered JSON (JavaScript Object Notation) parsing and serialization, allows remote unauthenticated attackers to submit deeply nested JSON documents. This can lead to a stack overflow, terminating the process and causing a Denial of Service (DoS) for services that accept OpenAPI specifications.
7.5 (High)
Affected products
Fixed
3 products, the same list as for
CVE-2026-56851
Threats
Impact
Important
References
49 references
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"title": "Vulnerability description"
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{
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"text": "Red Hat has rated this vulnerability as having an impact of Important because an unauthenticated remote attacker could trigger a denial of service by causing a process crash without requiring elevated permissions. In Red Hat environments where this Go library is embedded, exploitation requires that an application accepts untrusted dictionary structures for S2 compression and subsequently attempts encoding. Although the resulting memory access fault terminates the vulnerable process, the flaw is confined to process crashes and does not compromise data confidentiality or integrity.",
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"title": "github.com/klauspost/compress: klauspost/compress: Denial of Service via integer overflow in dictionary processing"
},
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"cwe": {
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},
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"ids": [
{
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{
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc: OpenTelemetry-Go: TLS certificate bypass allows log telemetry interception and alteration",
"title": "Vulnerability summary"
},
{
"category": "general",
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{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-81871",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-81871"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-81871",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81871"
},
{
"category": "external",
"summary": "https://github.com/open-telemetry/opentelemetry-go/commit/c65d435b43e5e6b82310e6b18dd4cdcb8ac63a0c",
"url": "https://github.com/open-telemetry/opentelemetry-go/commit/c65d435b43e5e6b82310e6b18dd4cdcb8ac63a0c"
},
{
"category": "external",
"summary": "https://github.com/open-telemetry/opentelemetry-go/releases/tag/exporters/otlp/otlplog/otlploggrpc/v0.21.0",
"url": "https://github.com/open-telemetry/opentelemetry-go/releases/tag/exporters/otlp/otlplog/otlploggrpc/v0.21.0"
},
{
"category": "external",
"summary": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-w34q-cm8f-9c5x",
"url": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-w34q-cm8f-9c5x"
}
],
"release_date": "2026-09-16T20:43:40.119000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-17T19:37:14+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:helm4-0:4.3.0-0.2.hum1@aarch64",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@src",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:68729"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@aarch64",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@src",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc: OpenTelemetry-Go: TLS certificate bypass allows log telemetry interception and alteration"
},
{
"cve": "CVE-2026-81872",
"cwe": {
"id": "CWE-835",
"name": "Loop with Unreachable Exit Condition"
},
"discovery_date": "2026-09-16T21:01:33.849934+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2535727"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the OpenTelemetry-Go `BatchingProcessor` component. A remote attacker can exploit this by sending a high volume of log emissions, which can fill the asynchronous export buffer. This causes the processor to enter a tight CPU loop, repeatedly retrying to export logs without proper waiting mechanisms. The consequence is the exhaustion of CPU resources, leading to a degradation or denial of service (DoS) in the affected application.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "go.opentelemetry.io/otel/sdk/log: OpenTelemetry-Go: Denial of Service via attacker-driven log emission",
"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"
}
],
"product_status": {
"fixed": [
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@aarch64",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@src",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-81872"
},
{
"category": "external",
"summary": "RHBZ#2535727",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2535727"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-81872",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-81872"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-81872",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81872"
},
{
"category": "external",
"summary": "https://github.com/open-telemetry/opentelemetry-go/commit/ba71b09e6ed272e93a669aeaec1e98b1df4cc582",
"url": "https://github.com/open-telemetry/opentelemetry-go/commit/ba71b09e6ed272e93a669aeaec1e98b1df4cc582"
},
{
"category": "external",
"summary": "https://github.com/open-telemetry/opentelemetry-go/issues/6797",
"url": "https://github.com/open-telemetry/opentelemetry-go/issues/6797"
},
{
"category": "external",
"summary": "https://github.com/open-telemetry/opentelemetry-go/pull/8620",
"url": "https://github.com/open-telemetry/opentelemetry-go/pull/8620"
},
{
"category": "external",
"summary": "https://github.com/open-telemetry/opentelemetry-go/releases/tag/sdk/log/v0.21.0",
"url": "https://github.com/open-telemetry/opentelemetry-go/releases/tag/sdk/log/v0.21.0"
},
{
"category": "external",
"summary": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-hjf4-fphr-2h65",
"url": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-hjf4-fphr-2h65"
}
],
"release_date": "2026-09-16T20:42:23.507000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-17T19:37:14+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:helm4-0:4.3.0-0.2.hum1@aarch64",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@src",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:68729"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"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:L",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@aarch64",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@src",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "go.opentelemetry.io/otel/sdk/log: OpenTelemetry-Go: Denial of Service via attacker-driven log emission"
},
{
"cve": "CVE-2026-93450",
"cwe": {
"id": "CWE-770",
"name": "Allocation of Resources Without Limits or Throttling"
},
"discovery_date": "2026-09-22T21:53:35.587728+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2538979"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the `go-openapi/swag` library\u0027s `jsonutils` component. This vulnerability, caused by uncontrolled recursion during ordered JSON (JavaScript Object Notation) parsing and serialization, allows remote unauthenticated attackers to submit deeply nested JSON documents. This can lead to a stack overflow, terminating the process and causing a Denial of Service (DoS) for services that accept OpenAPI specifications.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "github.com/go-openapi/swag: go-openapi/swag: Denial of Service via uncontrolled JSON recursion",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated as having Important impact because an unauthenticated remote attacker can trigger an immediate denial of service against vulnerable endpoints without requiring elevated privileges or user interaction. In Red Hat environments, Go-based network services that ingest untrusted structured specifications or API definitions are exposed to abnormal process termination and dropping of concurrent requests. Standalone command-line utilities and offline scanners using the library present minimal operational exposure, as exploitation requires an operator to directly process malicious input files.",
"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:helm4-0:4.3.0-0.2.hum1@aarch64",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@src",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-93450"
},
{
"category": "external",
"summary": "RHBZ#2538979",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2538979"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-93450",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-93450"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-93450",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93450"
},
{
"category": "external",
"summary": "https://github.com/go-openapi/swag",
"url": "https://github.com/go-openapi/swag"
},
{
"category": "external",
"summary": "https://github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/adapter.go#L68",
"url": "https://github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/adapter.go#L68"
},
{
"category": "external",
"summary": "https://github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/ordered_map.go#L214",
"url": "https://github.com/go-openapi/swag/blob/v0.27.0/jsonutils/adapters/stdlib/json/ordered_map.go#L214"
},
{
"category": "external",
"summary": "https://github.com/go-openapi/swag/commit/0c24346ced59a25811e8694a915e7131d25ccb0e",
"url": "https://github.com/go-openapi/swag/commit/0c24346ced59a25811e8694a915e7131d25ccb0e"
},
{
"category": "external",
"summary": "https://github.com/go-openapi/swag/security/advisories/GHSA-xh24-9qpg-8w28",
"url": "https://github.com/go-openapi/swag/security/advisories/GHSA-xh24-9qpg-8w28"
},
{
"category": "external",
"summary": "https://www.vulncheck.com/advisories/go-openapi-swag-jsonutils-before-0.27.1-uncontrolled-recursion-in-ordered-json-marshal-and-unmarshal",
"url": "https://www.vulncheck.com/advisories/go-openapi-swag-jsonutils-before-0.27.1-uncontrolled-recursion-in-ordered-json-marshal-and-unmarshal"
}
],
"release_date": "2026-09-17T23:25:10.883000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-17T19:37:14+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:helm4-0:4.3.0-0.2.hum1@aarch64",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@src",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:68729"
}
],
"scores": [
{
"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"
},
"products": [
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@aarch64",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@src",
"Red Hat Hardened Images:helm4-0:4.3.0-0.2.hum1@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "github.com/go-openapi/swag: go-openapi/swag: Denial of Service via uncontrolled JSON recursion"
}
]
}
Loading…
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.