VictoriaMetrics Snappy Decoder DoS Vulnerability is Causing OOM

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-65942
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-11-25 23:15:47 UTC
Updated2026-10-19 13:10:00 UTC
DescriptionVictoriaMetrics 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.

Risk And Classification

Primary CVSS: v3.1 2.7 LOW from [email protected]

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Problem Types: CWE-770 | CWE-770 CWE-770: Allocation of Resources Without Limits or Throttling

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary2.7LOWCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
3.1CNADECLARED2.7LOWCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA VictoriaMetrics VictoriaMetrics affected >= 1.0.0, < 1.110.23 Not specified
CNA VictoriaMetrics VictoriaMetrics affected >= 1.111.0, < 1.122.8 Not specified
CNA VictoriaMetrics VictoriaMetrics affected >= 1.123.0, < 1.129.1 Not specified

References

ReferenceSourceLinkTags
github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.129.1 [email protected] github.com
github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.23 [email protected] github.com
github.com/VictoriaMetrics/VictoriaMetrics/security/advisories/GHSA-66jq... [email protected] github.com
github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.8 [email protected] github.com
github.com/VictoriaMetrics/VictoriaMetrics/commit/51b44afd34d2c9a392d4eb... [email protected] github.com
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