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CVE-2026-34411— Appsmith < 1.98 Unauthenticated Instance Configuration Disclosure via Management APIs

Quick assessment

Affected
Appsmith Appsmith
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.

Appsmith是Appsmith开源的一个用于构建、部署和维护内部应用程序的开源平台。 Appsmith 1.98之前版本存在访问控制错误漏洞，该漏洞源于未经验证的实例管理API端点暴露，可能导致配置元数据、许可证信息和哈希值泄露。

CVSS 5.3 · Medium EPSS 0.47% · P39

Affected Version Matrix 1

VendorProduct Version RangeStatus
Appsmith Appsmith < 1.98.0 affected
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I. Basic Information for CVE-2026-34411

Vulnerability Information
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Vulnerability Title
Appsmith < 1.98 Unauthenticated Instance Configuration Disclosure via Management APIs
Source: CVE Program / CVE List V5
Vulnerability Description
Appsmith versions prior to 1.98 expose sensitive instance management API endpoints without authentication. Unauthenticated attackers can query endpoints like /api/v1/consolidated-api/view and /api/v1/tenants/current to retrieve configuration metadata, license information, and unsalted SHA-256 hashes of admin email domains for reconnaissance and targeted attack planning.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Appsmith 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Appsmith是Appsmith开源的一个用于构建、部署和维护内部应用程序的开源平台。 Appsmith 1.98之前版本存在访问控制错误漏洞，该漏洞源于未经验证的实例管理API端点暴露，可能导致配置元数据、许可证信息和哈希值泄露。
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
Appsmith Appsmith 0 ~ 1.98.0 -

II. Public POCs for CVE-2026-34411

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III. Intelligence Information for CVE-2026-34411

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Vendor Advisories for CVE-2026-34411 (2)

IV. Related Vulnerabilities

Same product: Appsmith
Same vendor: Appsmith
Same weakness: CWE-306