Security readout for executives and security teams
Plain-English summary
CVE-2022-41714 affects fastest-json-copy 1.0.1, a JavaScript package. An attacker-supplied JSON key can alter object behavior through prototype pollution, creating unauthorized object properties. The reported impact is limited integrity risk, not data theft or outage by itself.
Executive priority
Treat as a targeted dependency hygiene issue. Prioritize internet-facing services or APIs that accept JSON and use this package, but it does not currently warrant emergency response based on the provided evidence.
Technical view
CVE-2022-41714 is CWE-1321 prototype pollution in fastest-json-copy 1.0.1. The package does not correctly validate incoming JSON keys, allowing the __proto__ property to be edited and new object properties introduced. CVSS 3.1 is 5.3: network exploitable, low complexity, no privileges, no user interaction, low integrity impact.
Likely exposure
Exposure is likely limited to JavaScript projects that directly or transitively include fastest-json-copy 1.0.1 and use it to copy attacker-controlled JSON. Systems not using this package and version are not indicated as affected.
Exploitation context
The source bundle does not indicate CISA KEV listing or active exploitation. Exploitability depends on whether an application passes untrusted JSON into the affected copy logic and whether polluted properties influence security-relevant decisions.
Researcher notes
The public record identifies the vulnerable package and cause but does not provide a named fixed version in the supplied sources. Validate reachability before escalating severity, because prototype pollution impact depends heavily on downstream object usage.
Mitigation direction
- Inventory direct and transitive use of fastest-json-copy and confirm whether version 1.0.1 is present.
- If present, check the upstream repository and advisory for maintained remediation guidance.
- Avoid processing untrusted JSON through affected code paths until vendor guidance is applied.
- Add dependency policy controls to prevent reintroducing the affected version.
Validation and detection
- Review lockfiles and software inventories for fastest-json-copy version 1.0.1.
- Map application paths that pass external JSON into this dependency.
- Add regression tests for reserved prototype-related keys in JSON input.
- Confirm no authorization, routing, or validation logic trusts inherited object properties.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-1321: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-41714 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://fluidattacks.com/advisories/guetta/CVE reference
- https://github.com/streamich/fastest-json-copyCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.