by Kastro
Paper/Archive/CVE-2026-65317

CVE-2026-65317

Weaviate Verba — Verba (goldenverba) Server-Side Request Forgery via /api/connect and Same-Origin Middleware Bypass

EPSS 0.6%public exploitCVSS 9.2
critical.is priorityof 100
47
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 49.1.491 × 209.8Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Verba≤ 2.1.3–CNA

Scores by source

VulnCheck (CNA)9.2CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
VulnCheck (CNA)8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: partial

References

exploitgithub.com/geo-chen/oss/blob/main/verba.md#finding-2-ssrf--same-origin-middleware-bypass-in-apiconnect----goldenverbarefgithub.com/weaviate/Verbawriteupvulncheck.com/advisories/verba-goldenverba-server-side-request-forgery-via-api-connect-and-same-origin-middleware-bypass