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CVE-2026-34043

MEDIUM
5.9CVSS
Published: 2026-03-31
Updated: 2026-04-03
AI Analysis

Description

Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted "array-like" object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5.

CVSS Metrics

Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
network
Complexity
high
Privileges
none
User Action
none
Scope
unchanged
Confidentiality
none
Integrity
none
Availability
high
Weaknesses
CWE-400CWE-834

Metadata

Primary Vendor
YAHOO
Published
3/31/2026
Last Modified
4/3/2026
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

yahoo : serialize

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CVE-CVE-2026-34043 | MEDIUM Severity | CVEDatabase.com | CVEDatabase.com