RHSA-2026:34478
Vulnerability from csaf_redhat - Published: 2026-07-01 18:55 - Updated: 2026-07-09 05:45A flaw was found in brace-expansion. An attacker can exploit a vulnerability in the `expand()` function by providing a specially crafted string. This string, containing consecutive non-expanding brace groups, can trigger exponential-time complexity, leading to significant CPU consumption and event-loop blocking. This can result in a Denial of Service (DoS) for the affected system.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:nodejs24-main@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@noarch | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@src | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@x86_64 | — |
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A flaw was found in Node.js. A malicious server can exploit the HTTP/2 client by sending an unlimited number of ORIGIN frames. This can lead to an Out of Memory error on the client, resulting in a denial of service.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:nodejs24-main@aarch64 | — |
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fix
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@noarch | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@src | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@x86_64 | — |
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fix
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A flaw was found in Node.js. An inconsistency in how Node.js matches hostnames can be exploited by a remote attacker in multi-context mTLS (mutual Transport Layer Security) setups. This vulnerability allows for a trust-policy bypass, potentially leading to unauthorized access to sensitive information or integrity compromise within the affected system.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:nodejs24-main@aarch64 | — |
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fix
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@noarch | — |
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fix
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@src | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@x86_64 | — |
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A flaw was found in Node.js. This vulnerability in the TLS (Transport Layer Security) hostname handling allows embedded null characters in hostnames. This can lead to silent authority rebinding, potentially enabling an attacker to redirect network traffic to an unintended server and disclose sensitive information.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:nodejs24-main@aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@noarch | — |
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fix
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@src | — |
Vendor Fix
fix
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@x86_64 | — |
Vendor Fix
fix
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A flaw was found in Node.js. An attacker can exploit a vulnerability in the Transport Layer Security (TLS) host verification process to bypass certification validation. This bypass could allow an attacker to intercept or alter communications, potentially leading to information disclosure or integrity compromise.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:nodejs24-main@aarch64 | — |
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fix
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@noarch | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@src | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@x86_64 | — |
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A flaw was found in Node.js. The Permission API allows a local user to modify file metadata on paths that have been explicitly set as read-only. This can lead to unauthorized changes in file properties, impacting the integrity of the file system.
CWE-279 - Incorrect Execution-Assigned Permissions| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:nodejs24-main@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@noarch | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@src | — |
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fix
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@x86_64 | — |
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A flaw was found in Node.js. The Node.js Permission API can allow a local server to be started through a Unix domain socket, even when the `--allow-net` permission is not explicitly granted. This bypasses intended security restrictions, potentially leading to unintended local network exposure or integrity impact.
CWE-648 - Incorrect Use of Privileged APIs| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:nodejs24-main@aarch64 | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@noarch | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@src | — |
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| Unresolved product id: Red Hat Hardened Images:nodejs24-main@x86_64 | — |
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"notes": [
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"category": "description",
"text": "A flaw was found in brace-expansion. An attacker can exploit a vulnerability in the `expand()` function by providing a specially crafted string. This string, containing consecutive non-expanding brace groups, can trigger exponential-time complexity, leading to significant CPU consumption and event-loop blocking. This can result in a Denial of Service (DoS) for the affected system.",
"title": "Vulnerability description"
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"text": "brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity",
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{
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"text": "A flaw was found in brace-expansion, a widely-used npm package for expanding brace sequences. The expand() function exhibits exponential-time complexity when processing consecutive non-expanding brace groups. An attacker who can supply crafted input to expand(), directly or transitively via minimatch or glob, can cause significant CPU consumption and event-loop blocking, resulting in denial of service. The max option does not mitigate this issue, as it bounds the output size rather than the recursion work.",
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"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",
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},
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"title": "brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity"
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}
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.