Description
seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, overriding RegExp serialization with extremely large patterns can exhaust JavaScript runtime memory during deserialization. Additionally, overriding RegExp serialization with patterns that trigger catastrophic backtracking can lead to ReDoS (Regular Expression Denial of Service). This issue has been fixed in version 1.4.1.
Scores
CVSS v3
7.5
EPSS
0.0003
EPSS Percentile
7.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-1333
Status
published
Products (2)
lxsmnsyc/seroval
< 1.4.1 (2 CPE variants)
npm/seroval
0 - 1.4.1npm
Published
Jan 22, 2026
Tracked Since
Feb 18, 2026