CVE-2026-54465 (GCVE-0-2026-54465)
Vulnerability from cvelistv5 – Published: 2026-07-17 20:06 – Updated: 2026-07-17 20:06
VLAI
EPSS
VEX
Title
websocket-driver: Memory exhaustion in HTTP header parser
Summary
websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.1, when websocket-driver is used to implement a WebSocket server on top of a TCP server using WebSocket::Driver.server() or to complement a WebSocket client, a peer can make a single connection consume an unbounded amount of memory by sending an HTTP request or response with a never-ending list of headers. This can lead to the receiving process running out of memory. This issue is fixed in version 0.8.1.
Severity
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/faye/websocket-driver-ruby/sec… | x_refsource_CONFIRM |
| https://github.com/faye/websocket-driver-ruby/com… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| faye | websocket-driver-ruby |
Affected:
< 0.8.1
|
{
"containers": {
"cna": {
"affected": [
{
"product": "websocket-driver-ruby",
"vendor": "faye",
"versions": [
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"version": "\u003c 0.8.1"
}
]
}
],
"descriptions": [
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}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "LOW",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-17T20:06:06.980Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/faye/websocket-driver-ruby/security/advisories/GHSA-8j3g-f24p-4mpw",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/faye/websocket-driver-ruby/security/advisories/GHSA-8j3g-f24p-4mpw"
},
{
"name": "https://github.com/faye/websocket-driver-ruby/commit/17b569f232896e71d458404ccf4854f80e987710",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/faye/websocket-driver-ruby/commit/17b569f232896e71d458404ccf4854f80e987710"
}
],
"source": {
"advisory": "GHSA-8j3g-f24p-4mpw",
"discovery": "UNKNOWN"
},
"title": "websocket-driver: Memory exhaustion in HTTP header parser"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-54465",
"datePublished": "2026-07-17T20:06:06.980Z",
"dateReserved": "2026-06-15T15:30:40.319Z",
"dateUpdated": "2026-07-17T20:06:06.980Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
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}
}
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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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