JavaScript Serialization Vulnerability in Yahoo's Serialize Product
CVE-2026-115897

2.1LOW

Key Information:

Vendor

Yahoo

Status
Serialize-javascript
Vendor
CVE Published:
23 October 2026

What is CVE-2026-115897?

A vulnerability exists in the Serialize JavaScript library where improper handling of function-source escaping can lead to DOM injection. Specifically, attacker-influenced function source text may allow a closing-script prefix to terminate an HTML script element. This enables an attacker to inject arbitrary markup, creating a potential security risk. Users are encouraged to upgrade to version 7.1.3 or later to mitigate this issue.

Affected Version(s)

serialize-javascript < 7.1.3

References

https://github.com/yahoo/serialize-javascript/security/ad...
x_refsource_CONFIRM
https://github.com/yahoo/serialize-javascript/pull/235
x_refsource_MISC
https://github.com/yahoo/serialize-javascript/commit/2864...
x_refsource_MISC

CVSS V4

Score:
2.1
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.