RHSA-2026:75864
Vulnerability from csaf_opensuse - Published: 2026-10-05 16:16 - Updated: 2026-10-07 19:34A flaw was found in the pacote component. A remote attacker can exploit this denial of service (DoS) vulnerability by providing a specially crafted input to the `addGitSha` function. This malicious input triggers excessive CPU consumption due to regex replacement and string manipulation, which can lead to the process stalling or crashing.
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A flaw was found in undici. A remote attacker can exploit this vulnerability by responding with an unrequested WebSocket subprotocol during the opening handshake. This causes the undici WebSocket client to crash the entire Node.js process, leading to a denial of service (DoS).
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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.",
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"title": "pacote: Pacote: Denial of Service via crafted spec.rawSpec value in addGitSha function"
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{
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"id": "CWE-476",
"name": "NULL Pointer Dereference"
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"ids": [
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"text": "2528759"
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{
"category": "description",
"text": "A flaw was found in undici. A remote attacker can exploit this vulnerability by responding with an unrequested WebSocket subprotocol during the opening handshake. This causes the undici WebSocket client to crash the entire Node.js process, leading to a denial of service (DoS).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "undici: undici: Denial of Service via unrequested WebSocket subprotocol",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important denial of service flaw in undici\u0027s WebSocket client, which can lead to a Node.js process crash. The vulnerability is triggered when an application connects to a malicious or compromised server that responds with an unrequested WebSocket subprotocol, allowing a remote, unauthenticated attacker to cause a denial of service in affected Red Hat products.",
"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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},
{
"category": "external",
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{
"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-19534"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-19534",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19534"
},
{
"category": "external",
"summary": "https://cna.openjsf.org/security-advisories.html",
"url": "https://cna.openjsf.org/security-advisories.html"
},
{
"category": "external",
"summary": "https://github.com/nodejs/undici/security/advisories/GHSA-rfgv-xxqx-mfg5",
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"release_date": "2026-09-04T17:10:05.081000+00:00",
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{
"category": "vendor_fix",
"date": "2026-10-05T16:16:00+00:00",
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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"AppStream-10.2.Z:nodejs22-debuginfo-1:22.23.2-3.el10_2.x86_64",
"AppStream-10.2.Z:nodejs22-debugsource-1:22.23.2-3.el10_2.aarch64",
"AppStream-10.2.Z:nodejs22-debugsource-1:22.23.2-3.el10_2.ppc64le",
"AppStream-10.2.Z:nodejs22-debugsource-1:22.23.2-3.el10_2.s390x",
"AppStream-10.2.Z:nodejs22-debugsource-1:22.23.2-3.el10_2.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "undici: undici: Denial of Service via unrequested WebSocket subprotocol"
}
]
}
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.
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.
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.