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Prototype Pollution CVE-2024-12556

HIGH
Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution) (CWE-1321)
2025-04-08 security@elastic.co
8.7
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.7 HIGH
AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 18:35 vuln.today
Patch released
Mar 28, 2026 - 18:35 nvd
Patch available
CVE Published
Apr 08, 2025 - 20:15 nvd
HIGH 8.7

DescriptionCVE.org

Prototype Pollution in Kibana can lead to code injection via unrestricted file upload combined with path traversal.

AnalysisAI

Prototype Pollution in Kibana can lead to code injection via unrestricted file upload combined with path traversal. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, low attack complexity. This Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution) vulnerability could allow attackers to modify object prototypes to inject properties affecting application logic.

Technical ContextAI

This vulnerability is classified as Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution) (CWE-1321), which allows attackers to modify object prototypes to inject properties affecting application logic. Prototype Pollution in Kibana can lead to code injection via unrestricted file upload combined with path traversal. Affected products include: Elastic Kibana.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Freeze prototypes, validate object keys, avoid recursive merging of untrusted data.

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CVE-2024-12556 vulnerability details – vuln.today

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