CVE-2026-54490— websocket-driver: Resource limit bypass via message compression
Possible ATT&CK Techniques 1AI
T1496 · Resource HijackingAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| faye | websocket-driver-node | < 0.7.5 | affected |
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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)
Vulnerability Title
faye websocket-driver 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
faye websocket-driver是faye团队的一个WebSocket协议驱动库。 faye websocket-driver 0.7.5之前版本存在资源管理错误漏洞，该漏洞源于使用permessage-deflate扩展时消息大小限制检查压缩数据长度而非解压后长度，可能导致应用程序接受超出预期的消息并超出资源使用上限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| faye | websocket-driver-node | < 0.7.5 | - |
II. Public POCs for CVE-2026-54490
| # | POC Description | Source Link | Shenlong Link |
|---|
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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-2026-54463 | websocket-driver: Memory exhaustion via abuse of protocol length headers | |
| CVE-2026-54464 | websocket-driver: Resource limit bypass via message compression | |
| CVE-2026-54465 | websocket-driver: Memory exhaustion in HTTP header parser | |
| CVE-2026-54466 | websocket-driver: Message corruption via abuse of protocol length headers |
IV. Related Vulnerabilities
Same vendor: faye
- CVE-2026-54466
websocket-driver: Message corruption via abuse of protocol l - CVE-2026-54465
websocket-driver: Memory exhaustion in HTTP header parser - CVE-2026-54463
websocket-driver: Memory exhaustion via abuse of protocol le - CVE-2026-54464
websocket-driver: Resource limit bypass via message compress - CVE-2020-15133
Missing TLS certificate verification in Faye Websocket
Same weakness: CWE-770
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Netty SPDY SETTINGS frame count materializes unbounded setti - CVE-2026-48824
Mailpit: Sibling-endpoint memory-exhaustion DoS via unbounde - CVE-2026-15588
Gdbusserver: glib2: gdbusserver pre-authentication dos via u - CVE-2026-63750
SurrealDB before 3.1.0 Memory Amplification via /sql WebSock - CVE-2025-71396
SurrealDB before 2.2.2 Denial of Service via JavaScript Scri
V. Comments for CVE-2026-54490
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