VictoriaMetrics Snappy Decoder DoS Vulnerability is Causing OOM
Vulnerability Description
VictoriaMetrics is a scalable solution for monitoring and managing time series data. In versions from 1.0.0 to before 1.110.23, from 1.111.0 to before 1.122.8, and from 1.123.0 to before 1.129.1, affected versions are vulnerable to DoS attacks because the snappy decoder ignored VictoriaMetrics request size limits allowing malformed blocks to trigger excessive memory use. This could lead to OOM errors and service instability. The fix enforces block-size checks based on MaxRequest limits. This issue has been patched in versions 1.110.23, 1.122.8, and 1.129.1.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-65942
Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/VictoriaMetrics/VictoriaMetrics/security/advisories/GHSA-66jq-2c23-2xh5
- https://github.com/VictoriaMetrics/VictoriaMetrics/commit/51b44afd34d2c9a392d4ebedeeb5b4a7f5beca24
- https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.23
- https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.8
- https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.129.1
Affected Vendor
VictoriaMetrics
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