Cyber Resilience

CVE-2021-31856

Critical

Published: 28 April 2021

Published
28 April 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.7897 99.1th percentile
Risk Priority 67 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-31856 is a critical-severity SQL Injection (CWE-89) vulnerability in Layer5 Meshery. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 0.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A SQL Injection vulnerability in the REST API in Layer5 Meshery 0.5.2 allows an attacker to execute arbitrary SQL commands via the /experimental/patternfiles endpoint (order parameter in GetMesheryPatterns in models/meshery_pattern_persister.go).

CWE(s)
CWE-89

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

layer5
meshery
0.5.2

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-89

Penetration testing uses SQL injection payloads against database interfaces, identifying and supporting fixes for SQL injection weaknesses.

SI-10 Information Input Validation
addresses: CWE-89

Validates query inputs to prevent SQL syntax or command manipulation.

References