Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-52746— JSONata: Malicious inputs to "$toMillis" function can cause resource exhaustion

Quick assessment

Affected
jsonata-js jsonata
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

jsonata-js jsonata是jsonata-js组织的一款JSON查询与转换的表达式引擎。 jsonata-js jsonata 2.2.0之前版本存在资源管理错误漏洞，该漏洞源于$toMillis函数中ISO-8601验证正则表达式在接收到恶意不匹配输入时引发超线性回溯，可能导致拒绝服务。

CVSS 7.5 · High EPSS 0.69% · P52

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 2

VendorProduct Version RangeStatus
jsonata-js jsonata >= 2.0.0, < 2.2.0 affected
< 1.8.9 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-52746

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
JSONata: Malicious inputs to "$toMillis" function can cause resource exhaustion
Source: CVE Program / CVE List V5
Vulnerability Description
JSONata is a JSON query and transformation language. Prior to 2.2.0 and 1.8.9, malicious non-matching inputs to the $toMillis function can cause superlinear backtracking in the ISO-8601 validation regex, leading to denial of service in applications that evaluate user-provided JSONata expressions. This issue is fixed in version 2.2.0 and 1.8.9.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
jsonata-js jsonata 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
jsonata-js jsonata是jsonata-js组织的一款JSON查询与转换的表达式引擎。 jsonata-js jsonata 2.2.0之前版本存在资源管理错误漏洞，该漏洞源于$toMillis函数中ISO-8601验证正则表达式在接收到恶意不匹配输入时引发超线性回溯，可能导致拒绝服务。
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

Vendor Product Affected Versions CPE Subscribe
jsonata-js jsonata >= 2.0.0, < 2.2.0 -

II. Public POCs for CVE-2026-52746

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 20890 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-52746

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-52746 (5)

Vendor Advisories for CVE-2026-52746 (1)

Vendor Pages for CVE-2026-52746 (1)

IV. Related Vulnerabilities

Same product: jsonata
Same vendor: jsonata-js
Same weakness: CWE-1333