CVE-2026-54490

node-websocket-driver: websocket-driver is a WebSocket protocol handler with pluggable I/O

CVE-2026-54490 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-54490, released July 17, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0045
38th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
agama-web-ui · opensuse-leap 16.0 17+673.b97ba64d6-160000.12.1 OPENSUSE-SU-2026:21448-1 Jul 27, 2026
node-websocket-driver · Debian 14 0.7.5+~cs0.6.14-1 DEBIAN-CVE-2026-54490 Jul 17, 2026

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