Object prototype modification via unchecked shimPath key
Published Oct 31, 2022 · Updated May 6, 2025
Prototype pollution in browserify-shim 3.8.15 allows remote attackers to modify inherited object properties through crafted shim paths. The resolvePaths helper writes each shim configuration into a plain accumulator object under the shimPath-derived key without rejecting names that resolve to the object prototype. Exploitation requires attacker control of a shim path consumed during bundling; the public record identifies no specific polluted property or demonstrated downstream effect.
Summary
What happened
Prototype pollution in browserify-shim 3.8.15 allows remote attackers to modify inherited object properties through crafted shim paths. The resolvePaths helper writes each shim configuration into a plain accumulator object under the shimPath-derived key without rejecting names that resolve to the object prototype. Exploitation requires attacker control of a shim path consumed during bundling; the public record identifies no specific polluted property or demonstrated downstream effect.
The record
- CVE
- CVE-2022-37623
- Published
- Oct 31, 2022
- Updated
- May 6, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-1321
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 31, 2022CVE publishedPublication date reported by the CVE source.
- May 6, 2025Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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