CVE-2023-22477
MEDIUMMercurius < 8.13.2 and 9.0.0-11.5.0 - Denial of Service via Malformed WebSocket Packet
Title source: llmDescription
Mercurius is a GraphQL adapter for Fastify. Any users of Mercurius until version 10.5.0 are subjected to a denial of service attack by sending a malformed packet over WebSocket to `/graphql`. This issue was patched in #940. As a workaround, users can disable subscriptions.
References (3)
Core 3
Core References
Patch, Third Party Advisory x_refsource_confirm
https://github.com/mercurius-js/mercurius/security/advisories/GHSA-cm8h-q92v-xcfc
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/mercurius-js/mercurius/issues/939
Patch, Third Party Advisory x_refsource_misc
https://github.com/mercurius-js/mercurius/pull/940
Scores
CVSS v3
5.3
EPSS
0.0106
EPSS Percentile
59.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-248
Status
published
Products (2)
mercurius_project/mercurius
< 8.13.2
npm/mercurius
9.0.0 - 11.5.0npm
Published
Jan 09, 2023
Tracked Since
Feb 18, 2026