CVE-2026-23957

Description

seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, overriding encoded array lengths by replacing them with an excessively large value causes the deserialization process to significantly increase processing time. This issue has been fixed in version 1.4.1.

PUBLISHED Reserved 2026-01-19 | Published 2026-01-22 | Updated 2026-01-22 | Assigner GitHub_M

Problem types

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

References

github.com/...eroval/security/advisories/GHSA-66fc-rw6m-c2q6

github.com/...ommit/ce9408ebc87312fcad345a73c172212f2a798060

cve.org (CVE-2026-23957)

nvd.nist.gov (CVE-2026-23957)

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