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CVE-2026-54490— websocket-driver: Resource limit bypass via message compression

AI Predicted 6.5 Difficulty: Moderate

Possible ATT&CK Techniques 1AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2026-54490

Vulnerability Information
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Vulnerability Title
websocket-driver: Resource limit bypass via message compression
Source: NVD (National Vulnerability Database)
Vulnerability Description
websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.7.5, if this library is used with the permessage-deflate extension, a WebSocket server or client can be made to accept messages that are larger than the configured maximum message size because the limit is checked against the message frames' length headers, which give the size of the compressed data, not the size after decompression in lib/websocket/driver/hybi.js. This can lead to applications accepting larger messages than expected and exceeding their intended resource usage. This issue is fixed in version 0.7.5.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
fayewebsocket-driver-node < 0.7.5 -

II. Public POCs for CVE-2026-54490

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III. Intelligence Information for CVE-2026-54490

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Patches & Fixes for CVE-2026-54490 (1)

Vendor Advisories for CVE-2026-54490 (1)

Same Patch Batch · faye · 2026-07-17 · 5 CVEs total

CVE-2026-54463websocket-driver: Memory exhaustion via abuse of protocol length headers
CVE-2026-54464websocket-driver: Resource limit bypass via message compression
CVE-2026-54465websocket-driver: Memory exhaustion in HTTP header parser
CVE-2026-54466websocket-driver: Message corruption via abuse of protocol length headers

IV. Related Vulnerabilities

Same product: websocket-driver-node
Same vendor: faye
Same weakness: CWE-770

V. Comments for CVE-2026-54490

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