CVE-2026-23736
HIGH
GHSA-hj76-42vx-jwp4
7.3
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Lifecycle Timeline
3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
Patch Released
Feb 27, 2026 - 19:36 nvd
Patch available
CVE Published
Jan 21, 2026 - 23:15 nvd
HIGH 7.3
Tags
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.
Analysis
Seroval is affected by improperly controlled modification of object prototype attributes (prototype pollution) (CVSS 7.3).
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Remediation
Within 7 days: Identify all affected systems and apply vendor patches promptly. Vendor patch is available.
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Priority Score
37
Low
Medium
High
Critical
KEV: 0
EPSS: +0.2
CVSS: +36
POC: 0
Vendor Status
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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