CVE-2026-23956 — seroval affected by Denial of Service via RegExp serialization
seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 0.2.0 through 1.4.0, overriding RegExp serialization w…
Published: 2026-01-22 · CVSS: 7.5 · CVSS 3.1
seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 0.2.0 through 1.4.0, 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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7