GitHub Advisoryadvisory · Go

GHSA-66jq-2c23-2xh5 VictoriaMetrics' Snappy Decoder DoS Vulnerability is Causing OOM

LOW Published 2025-11-25 Modified 2025-12-17 Official page ↗
Aliases
CVE-2025-65942
Ecosystem
Go
Packages
github.com/VictoriaMetrics/VictoriaMetrics
Severity
Low
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-770
Reviewed
2025-11-25

Affected packages

• Go github.com/VictoriaMetrics/VictoriaMetrics: >= 1.123.0, < 1.129.1 → fixed in 1.129.1 • Go github.com/VictoriaMetrics/VictoriaMetrics: >= 1.111.0, < 1.122.8 → fixed in 1.122.8 • Go github.com/VictoriaMetrics/VictoriaMetrics: >= 1.0.0, < 1.110.23 → fixed in 1.110.23

Description

Impact 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. Patches Versions 1.129.1, 1.122.8, 1.110.23 Resources • https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.129.1 • https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.8 • https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.23 Note VictoriaMetrics' security model assumes its APIs are properly secured (e.g. via access control flags or a firewall); this advisory addresses malicious input that should not be possible under a correctly secured deployment.

Related

Alias · CVE (1)

  • CVE-2025-65942 VictoriaMetrics is a scalable solution for monitoring and managing time series data. vulnerability

Weakness · CWE (1)

  • CWE-770 Allocation of Resources Without Limits or Throttling weakness

References