RHSA-2026:38187
Vulnerability from csaf_redhat - Published: 2026-07-11 01:14 - Updated: 2026-08-04 22:04Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
rust:
* cargo-1.97.0-1.1.hum1 (aarch64, x86_64)
* clippy-1.97.0-1.1.hum1 (aarch64, x86_64)
* rust-1.97.0-1.1.hum1 (aarch64, x86_64)
* rust-analyzer-1.97.0-1.1.hum1 (aarch64, x86_64)
* rust-debugger-common-1.97.0-1.1.hum1 (noarch)
* rust-doc-1.97.0-1.1.hum1 (aarch64, x86_64)
* rust-gdb-1.97.0-1.1.hum1 (noarch)
* rust-lldb-1.97.0-1.1.hum1 (noarch)
* rust-src-1.97.0-1.1.hum1 (noarch)
* rust-std-static-1.97.0-1.1.hum1 (aarch64, x86_64)
* rust-std-static-aarch64-unknown-none-softfloat-1.97.0-1.1.hum1 (noarch)
* rust-std-static-aarch64-unknown-uefi-1.97.0-1.1.hum1 (noarch)
* rust-std-static-i686-pc-windows-gnu-1.97.0-1.1.hum1 (noarch)
* rust-std-static-wasm32-unknown-unknown-1.97.0-1.1.hum1 (noarch)
* rust-std-static-wasm32-wasip1-1.97.0-1.1.hum1 (noarch)
* rust-std-static-x86_64-pc-windows-gnu-1.97.0-1.1.hum1 (noarch)
* rust-std-static-x86_64-unknown-none-1.97.0-1.1.hum1 (noarch)
* rust-std-static-x86_64-unknown-uefi-1.97.0-1.1.hum1 (noarch)
* rustfmt-1.97.0-1.1.hum1 (aarch64, x86_64)
* rust-1.97.0-1.1.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 linkify-it, a library for recognizing links with full Unicode support. The LinkifyIt.prototype.match function, the package's primary public API, has an algorithmic complexity of O(N²) for inputs containing many fuzzy links or emails. This can be exploited by a remote attacker sending a specially crafted request body, leading to a worker-process denial of service (DoS) due to excessive CPU usage when synchronously rendering untrusted Markdown with linkify enabled.
7.5 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:rust-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:rust-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:rust-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:rust-main@x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
A flaw was found in js-yaml, a JavaScript YAML parser and dumper. A remote attacker could exploit this vulnerability by providing a specially crafted YAML document containing a chain of mappings with merge keys. This could cause the parser to consume excessive CPU resources, leading to a Denial of Service (DoS) for the affected system.
7.5 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:rust-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:rust-main@noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:rust-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:rust-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
21 references
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"scope": "UNCHANGED",
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"details": "Important"
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"title": "linkify-it: linkify-it: Denial of Service via algorithmic complexity vulnerability"
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"name": "Unchecked Input for Loop Condition"
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"discovery_date": "2026-07-08T16:01:38.408322+00:00",
"ids": [
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"notes": [
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"category": "description",
"text": "A flaw was found in js-yaml, a JavaScript YAML parser and dumper. A remote attacker could exploit this vulnerability by providing a specially crafted YAML document containing a chain of mappings with merge keys. This could cause the parser to consume excessive CPU resources, leading to a Denial of Service (DoS) for the affected system.",
"title": "Vulnerability description"
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"text": "js-yaml: js-yaml: Denial of Service via crafted YAML documents",
"title": "Vulnerability summary"
},
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"text": "This vulnerability is rated as Important. Red Hat products utilizing `js-yaml` to process untrusted YAML input are susceptible to a denial of service, as a remote attacker can provide a crafted document that consumes excessive CPU resources. This is considered Important due to the potential for service disruption without requiring authentication or complex attack vectors.",
"title": "Statement"
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{
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"title": "CVSS score applicability"
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{
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"date": "2026-07-11T01:14:07+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:rust-main@aarch64",
"Red Hat Hardened Images:rust-main@noarch",
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],
"restart_required": {
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"url": "https://access.redhat.com/errata/RHSA-2026:38187"
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{
"category": "workaround",
"details": "To reduce exposure, restrict the processing of untrusted YAML documents by applications that rely on `js-yaml`. Implement robust input validation and sanitization for all YAML data originating from external or untrusted sources. Consider limiting network access to services that parse YAML content to trusted networks or clients through appropriate firewall configurations.",
"product_ids": [
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"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": [
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "js-yaml: js-yaml: Denial of Service via crafted YAML documents"
}
]
}
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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.
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