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CVE-2026-56747— Code Injection in JSON Pointer Processing Component in Cribl Stream

Quick assessment

Affected
Cribl Cribl Stream
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.

cribl Cribl Stream是cribl公司的数据流处理平台。 Cribl Stream 4.18.2之前版本存在代码注入漏洞，该漏洞源于JSON Pointer-to-accessor编译器中代码生成控制不当，允许远程认证攻击者通过特制数据库连接标识符或包配置值执行任意JavaScript。

CVSS 8.8 · High EPSS 0.67% · P51

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Cribl Cribl Stream < 4.18.2 affected
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I. Basic Information for CVE-2026-56747

Vulnerability Information
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Vulnerability Title
Code Injection in JSON Pointer Processing Component in Cribl Stream
Source: CVE Program / CVE List V5
Vulnerability Description
Improper control of generation of code in the JSON Pointer-to-accessor compiler in Cribl Stream before 4.18.2 allows a remote authenticated attacker with edit privileges to execute arbitrary JavaScript on the server via a crafted database connection identifier or pack configuration value.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Cribl Stream 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
cribl Cribl Stream是cribl公司的数据流处理平台。 Cribl Stream 4.18.2之前版本存在代码注入漏洞，该漏洞源于JSON Pointer-to-accessor编译器中代码生成控制不当，允许远程认证攻击者通过特制数据库连接标识符或包配置值执行任意JavaScript。
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
Cribl Cribl Stream 0 ~ 4.18.2 -

II. Public POCs for CVE-2026-56747

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III. Intelligence Information for CVE-2026-56747

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Vendor Advisories for CVE-2026-56747 (1)

Vendor Pages for CVE-2026-56747 (1)

IV. Related Vulnerabilities

Same product: Cribl Stream
Same vendor: Cribl
Same weakness: CWE-94

V. Comments for CVE-2026-56747

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