CVE-2026-23957— seroval is vulnerable to Denial of Service via array serialization
Quick assessment
Affected
lxsmnsyc seroval
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
seroval是Alexis H. Munsayac个人开发者的一个格式化Java库。 seroval 1.4.0及之前版本存在安全漏洞，该漏洞源于反序列化过程中处理被覆盖的过大数组长度值，可能导致处理时间显著增加。
Possible ATT&CK Techniques 1 AI
T1496 · Resource Hijacking
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I. Basic Information for CVE-2026-23957
Vulnerability Information
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Vulnerability Title
seroval is vulnerable to Denial of Service via array serialization
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
seroval 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
seroval是Alexis H. Munsayac个人开发者的一个格式化Java库。 seroval 1.4.0及之前版本存在安全漏洞，该漏洞源于反序列化过程中处理被覆盖的过大数组长度值，可能导致处理时间显著增加。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-23957
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-23957 (1)
-
`1.4.1` and `1.4.2` · lxsmnsyc/seroval@ce9408e · GitHub x_refsource_MISC
Same Patch Batch · lxsmnsyc · 2026-01-22 · 3 CVEs total
| CVE-2026-23956 | 7.5 HIGH | seroval affected by Denial of Service via RegExp serialization |
| CVE-2026-24006 | 7.5 HIGH | Seroval affected by Denial of Service via Deeply Nested Objects |
IV. Related Vulnerabilities
Same product: seroval
-
CVE-2026-59940
Seroval: `seroval.fromJSON()` Promise resolver type confusio -
CVE-2026-24006
Seroval affected by Denial of Service via Deeply Nested Obje -
CVE-2026-23956
seroval affected by Denial of Service via RegExp serializati -
CVE-2026-23737
seroval Affected by Remote Code Execution via JSON Deseriali -
CVE-2026-23736
seroval Affected by Prototype Pollution via JSON Deserializa
Same vendor: lxsmnsyc
-
CVE-2026-59940
Seroval: `seroval.fromJSON()` Promise resolver type confusio -
CVE-2026-24006
Seroval affected by Denial of Service via Deeply Nested Obje -
CVE-2026-23956
seroval affected by Denial of Service via RegExp serializati -
CVE-2026-23737
seroval Affected by Remote Code Execution via JSON Deseriali -
CVE-2026-23736
seroval Affected by Prototype Pollution via JSON Deserializa
Same weakness: CWE-770
-
CVE-2026-55620
eml_parser: DoS via deeply nested parens in Received headers -
CVE-2026-55619
eml_parser: Parser DoS via deeply nested parentheses in e-ma -
CVE-2026-63075
QUIC ACK-only Packet Retention Can Cause Memory Exhaustion -
CVE-2026-63074
CMP Indefinite Cache Growth of ExtraCerts -
CVE-2026-79661
Ech0 before 4.7.3 Unauthenticated fav_count Modification
V. Comments for CVE-2026-23957
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