DEBIAN-CVE-2026-54464
### Impact If this library is used in tandem 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. This is because this limit is checked against the message frames' length headers, which give the size of the compressed data, not the size after decompression. This can lead to applications accepting larger messages than expected and exceeding their intended resource usage. ### Patches The issue has been patched in version 0.8.1, by checking the length of messages after they are processed by incoming extensions. All users should upgrade to this version. ### Workarounds No known workarounds exist. ### Acknowledgements This issue was discovered and reported by Pranjali Thakur, DepthFirst Security Research Team.
DEBIAN-CVE-2026-54464
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-54464
ruby-websocket-driver
Source reference: /affected/0/package/name
- Affected versions
- 0.6.3-3
Source reference:
/affected/0/versions0.8.0-1Source reference:
/affected/0/versions0.8.1-1Source reference:
/affected/0/versions0.8.2-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
ruby-websocket-driver
Source reference: /affected/1/package/name
- Affected versions
- 0.6.3-3
Source reference:
/affected/1/versions0.8.0-1Source reference:
/affected/1/versions0.8.1-1Source reference:
/affected/1/versions0.8.2-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
ruby-websocket-driver
Source reference: /affected/2/package/name
- Affected versions
- 0.6.3-3
Source reference:
/affected/2/versions0.8.0-1Source reference:
/affected/2/versions - Fixed versions
- 0.8.1-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ruby-websocket-driver",
"purl": "pkg:deb/debian/ruby-websocket-driver?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"0.6.3-3",
"0.8.0-1",
"0.8.1-1",
"0.8.2-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54464.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ruby-websocket-driver",
"purl": "pkg:deb/debian/ruby-websocket-driver?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.6.3-3",
"0.8.0-1",
"0.8.1-1",
"0.8.2-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54464.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.8.1-1"
}
]
}
],
"package": {
"name": "ruby-websocket-driver",
"purl": "pkg:deb/debian/ruby-websocket-driver?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"0.6.3-3",
"0.8.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54464.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57831 · Revision 1
- Added to Heist Feed
- Publisher date