CVE-2025-65942

VictoriaMetrics Snappy Decoder DoS Vulnerability is Causing OOM

Published Nov 25, 2025 CVSS 3.1 · 2.7 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-66jq-2c23-2xh5 VictoriaMetrics' Snappy Decoder DoS Vulnerability is Causing OOM
History
Type Values Removed Values Added
First Time appeared Victoriametrics
Victoriametrics victoriametrics
Vendors & Products Victoriametrics
Victoriametrics victoriametrics
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title VictoriaMetrics Snappy Decoder DoS Vulnerability is Causing OOM
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 2.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Nov 26, 2025, 2:53 PM
Reserved
Nov 18, 2025, 4:14 PM
Status
Deferred
Published
Nov 25, 2025, 11:15 PM
Modified
Oct 19, 2026, 1:10 PM