CVE-2026-81190— KurrentDB: Privileged access to read $all enables arbitrary file read and GET-only SSRF

Quick assessment

Affected

kurrent-io KurrentDB

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.

KurrentDB 是一款专为现代软件应用和事件驱动架构设计的数据库。在版本 26.1.0 中，拥有读取流权限的用户可利用二级索引查询功能，读取数据库进程可访问的任意文件、枚举目录，并从该进程中发起 HTTP GET 请求。默认配置下，该权限仅限于管理员。此漏洞不允许写入文件，也不会暴露环境变量。该问题已在版本 26.1.1 中修复。

CVSS 6.9 · Medium Updated Nov 06, 2026

Possible ATT&CK Techniques 3 AI

T1071 · Application Layer Protocol T1005 · Data from Local System T1083 · File and Directory Discovery

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Vulnerability Information

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Vulnerability Title

KurrentDB: Privileged access to read $all enables arbitrary file read and GET-only SSRF

Source: CVE Program / CVE List V5

Vulnerability Description

KurrentDB is a database engineered for modern software applications and event-driven architectures. In version 26.1.0, a user authorized to read the $all stream can use Secondary Indexing query capabilities to read arbitrary files accessible to the database process, enumerate directories, and issue HTTP GET requests from that process. The default configuration limits this privilege to administrators. The flaw does not permit file writes and does not expose environment variables. This issue is fixed in version 26.1.1.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Source: CVE Program / CVE List V5

Vulnerability Type

文件名或路径的外部可控制

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
kurrent-io	KurrentDB	= 26.1.0	-

II. Public POCs for CVE-2026-81190

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-81190

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Other References for CVE-2026-81190 (5)

https://github.com/kurrent-io/KurrentDB/pull/5674 x_refsource_MISC
https://github.com/kurrent-io/KurrentDB/releases/tag/v26.1.1 x_refsource_MISC
https://kurrentdb.kurrent.io/releases/kurrentdb-26-1-1-security-release x_refsource_MISC
https://github.com/kurrent-io/KurrentDB/security/advisories/GHSA-r8vq-5875-cq97 x_refsource_CONFIRM
https://github.com/kurrent-io/KurrentDB/commit/18706d0d5fcec5e2fbb0d20f76638d113b5842c8 x_refsource_MISC

https://www.cve.org/CVERecord?id=CVE-2026-81190

IV. Related Vulnerabilities

Same weakness: CWE-73