CVE-2021-23413
Denial of Service (DoS)
MEDIUM
5.3
CVSS Score
Published: July 25, 2021 at 01:10 PM UTC
Updated: June 17, 2026 at 03:38 AM UTC
1 product affected across 1 vendorJszip
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Severity
MEDIUM5.3
Exploit prediction
EPSS 3%
Description
This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
v < 3.7.0
Affected range stops below 3.7.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (6)
x_refsource_MISCBroken Link
Source: [email protected]
https://github.com/Stuk/jszip/blob/master/lib/object.js%23L88x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/Stuk/jszip/commit/22357494f424178cb416cdb7d93b26dd4f824b36x_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1251499x_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1251498x_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JS-JSZIP-1251497CVSS
5.3MEDIUMsnyk
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- LOW
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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