# CVE-2026-105145: Weaviate Verba unauthenticated API key exfiltration in generate_stream

Source: https://junglewise.ai/threats/cve-2026-105145-a-vulnerability-has-been-found-in-weaviate-verba-up-to-2-1-3  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-04. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-105145 · Severity: medium · CVSS 5.3 · Published 2026-10-04

Weaviate Verba is a retrieval-augmented generation (RAG) system that integrates with LLM providers. An unauthenticated attacker can trick the server into revealing stored API keys (such as OpenAI credentials) by sending a malicious configuration to the /ws/generate_stream endpoint, allowing credential theft and unauthorized use of the victim's LLM provider account.

Vendors: [Weaviate](https://junglewise.ai/threats/vendors/weaviate).

## Quick answers

**Is CVE-2026-105145 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-105145 being exploited in the wild.

**How severe is CVE-2026-105145?** Medium severity, with a CVSS score of 5.3, published 4 October 2026.

**Which products and versions are affected?** Weaviate Verba up to 2.1.3.

**Is there a fix for CVE-2026-105145?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-105145 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-105145?** Check whether you run Weaviate Verba at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The /ws/generate_stream WebSocket endpoint accepts unauthenticated client connections and processes user-supplied RAG generator configurations without validating authentication or the origin. When an attacker supplies a custom OpenAI-compatible base URL and omits the API key field, the get_environment() function falls back to reading the real key from the process environment (OPENAI_API_KEY, OPENAI_EMBED_API_KEY, etc.) and sends it via Authorization header to the attacker-controlled URL. This is an authenticated SSRF that leaks live provider secrets, exploitable without authentication or user interaction.

## Affected products

- Weaviate Verba up to 2.1.3

## Timeline

- 2026-08-25: disclosed: Exploit published on GitHub Gist
- 2026-10-04: advisory: CVE-2026-105145 published
- 2026-06-08: other: Verba repository archived by vendor; no patch available

## References

- [https://gist.github.com/DReazer/63d8096046a058f9c7a533846db5e2ac](https://gist.github.com/DReazer/63d8096046a058f9c7a533846db5e2ac)
- [https://vuldb.com/cve/CVE-2026-105145](https://vuldb.com/cve/CVE-2026-105145)