CVE-2021-23436 (GCVE-0-2021-23436)

Vulnerability from cvelistv5 – Published: 2021-09-01 17:30 – Updated: 2024-09-16 16:28
VLAI?
Title
Prototype Pollution
Summary
This affects the package immer before 9.0.6. A type confusion vulnerability can lead to a bypass of CVE-2020-28477 when the user-provided keys used in the path parameter are arrays. In particular, this bypass is possible because the condition (p === "__proto__" || p === "constructor") in applyPatches_ returns false if p is ['__proto__'] (or ['constructor']). The === operator (strict equality operator) returns false if the operands have different type.
Severity ?
5.6 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CWE
  • Prototype Pollution
Assigner
References
Impacted products
Vendor Product Version
n/a immer Affected: unspecified , < 9.0.6 (custom)
Credits
Alessio Della Libera of Snyk Research Team
Show details on NVD website
To clipboard 

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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