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CVE-2026-23956

🔴 HIGH

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 pattern...

Published
Jan 22, 2026
Last Modified
Jan 26, 2026
Views
6
Bookmarks
0

Description

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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.

CVSS Scores

CVSS 3.1 7.5
7.5
HIGH
CVSS 2.0 7.5

References

github.com github.com

Additional Information

Source
security-advisories@github.com
State
Awaiting analysis

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