seroval Affected by Prototype Pollution via JSON Deserialization_CVE-2026-23736

7.3 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Description

seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, due to improper input validation, a malicious object key can lead to prototype pollution during JSON deserialization. This vulnerability affects only JSON deserialization functionality. This issue is fixed in version 1.4.1.

Basic Information

ID CVE-2026-23736

Source GitHub_M

Published Jan 21, 2026 at 23:01

Modified Jan 22, 2026 at 14:45

Affected Product

Vendor lxsmnsyc

Product seroval

Version < 1.4.1

Affected Versions lxsmnsyc seroval < 1.4.1

CWE Classification

CWE-1321

References

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    "published": "2026-01-21T23:01:10.114Z",
    "modified": "2026-01-22T14:45:53.950Z",
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