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Vulnerability record · CVE-2026-65317 · published 21 July 2026

CVE-2026-65317: Server-side request forgery (SSRF) vulnerability

Verba RAG application version 2.1.3 contains a server-side request forgery vulnerability combined with a same-origin middleware bypass that allows unauthenticated remote attackers to make the server issue arbitrary HTTP requests by supplying a crafted Origin header and attacker-controlled host and port values. Attackers can bypass the localhost origin check in the API middleware by sending any Origin value prefixed with ' regardless of port, then submit arbitrary host and port parameters to the /api/connect endpoint to cause the server to issue outbound GET requests to attacker-controlled infrastructure.

9.2 CVSS 4.0 Critical EPSS 0.64% · top 51.3% CWE-918 · Server-side request forgery (SSRF) Deferred
9.2CVSS 4.0 base score
0.64%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
23 Jul 2026Last modified by NVD

Description

Verba RAG application version 2.1.3 contains a server-side request forgery vulnerability combined with a same-origin middleware bypass that allows unauthenticated remote attackers to make the server issue arbitrary HTTP requests by supplying a crafted Origin header and attacker-controlled host and port values. Attackers can bypass the localhost origin check in the API middleware by sending any Origin value prefixed with ' regardless of port, then submit arbitrary host and port parameters to the /api/connect endpoint to cause the server to issue outbound GET requests to attacker-controlled infrastructure.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/geo-chen/oss/blob/main/verba.md#finding-2-ssrf--same-origin-middleware-bypass-in-apiconnect----golden
https://github.com/weaviate/Verba
https://www.vulncheck.com/advisories/verba-goldenverba-server-side-request-forgery-via-api-connect-and-same-origin-middl
https://github.com/geo-chen/oss/blob/main/verba.md#finding-2-ssrf--same-origin-middleware-bypass-in-apiconnect----golden

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Source: NIST National Vulnerability Database (record CVE-2026-65317), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.