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2 vulnerabilities by milamer
CVE-2026-45302 (GCVE-0-2026-45302)
Vulnerability from nvd – Published: 2026-06-01 17:20 – Updated: 2026-06-02 14:45
VLAI
EPSS
VEX
Title
Prototype Pollution in parse-nested-form-data via `__proto__` in FormData field names
Summary
parse-nested-form-data is a tiny node module for parsing FormData by name into objects and arrays. Prior to version 1.0.1, parseFormData() walks bracket and dot-notation FormData field names into nested objects without filtering reserved property keys. A single FormData field whose name begins with __proto__, or contains .__proto__. mid-path, causes the parser to traverse onto Object.prototype and assign properties there, polluting the prototype chain of every plain object in the running process. This issue has been patched in version 1.0.1.
Severity
8.2 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/milamer/parse-nested-form-data… | x_refsource_CONFIRM |
| https://github.com/milamer/parse-nested-form-data… | x_refsource_MISC |
| https://github.com/milamer/parse-nested-form-data… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| milamer | parse-nested-form-data |
Affected:
< 1.0.1
|
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CVE-2026-45302 (GCVE-0-2026-45302)
Vulnerability from cvelistv5 – Published: 2026-06-01 17:20 – Updated: 2026-06-02 14:45
VLAI
EPSS
VEX
Title
Prototype Pollution in parse-nested-form-data via `__proto__` in FormData field names
Summary
parse-nested-form-data is a tiny node module for parsing FormData by name into objects and arrays. Prior to version 1.0.1, parseFormData() walks bracket and dot-notation FormData field names into nested objects without filtering reserved property keys. A single FormData field whose name begins with __proto__, or contains .__proto__. mid-path, causes the parser to traverse onto Object.prototype and assign properties there, polluting the prototype chain of every plain object in the running process. This issue has been patched in version 1.0.1.
Severity
8.2 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/milamer/parse-nested-form-data… | x_refsource_CONFIRM |
| https://github.com/milamer/parse-nested-form-data… | x_refsource_MISC |
| https://github.com/milamer/parse-nested-form-data… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| milamer | parse-nested-form-data |
Affected:
< 1.0.1
|
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