CVE-2026-30247: WeKnora: SSRF via Redirection

Vulnerability summary

CVE-2026-30247 is a high (CVSS 7.5) Server-Side Request Forgery vulnerability in tencent weknora. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 37% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 07-03-2026
   PublishedVulnerability first disclosed.
2. 09-03-2026
   Last modifiedVulnerability information updated.

Description

WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.2.12, the application's "Import document via URL" feature is vulnerable to Server-Side Request Forgery (SSRF) through HTTP redirects. While the backend implements comprehensive URL validation (blocking private IPs, loopback addresses, reserved hostnames, and cloud metadata endpoints), it fails to validate redirect targets. An attacker can bypass all protections by using a redirect chain, forcing the server to access internal services. Additionally, Docker-specific internal addresses like host.docker.internal are not blocked. This issue has been patched in version 0.2.12.

• CWE-918Server-Side Request ForgeryThe web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.