# CVE-2026-15330: zhayujie CowAgent SSRF in Vision Tool

Source: https://junglewise.ai/threats/cve-2026-15330-zhayujie-cowagent-ssrf-in-vision-tool  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-10. Updated: 2026-07-10  
License: CC BY 4.0 with a link back

CVE-2026-15330 · Severity: high · CVSS 7.3 · Published 2026-07-10

CowAgent, an AI assistant and agent framework, contains a security flaw in its Vision Tool component. This tool is responsible for processing images, including fetching them from web addresses. An attacker can exploit this to force the server to make unauthorized requests to internal systems or private network services, potentially leading to the exposure of sensitive internal data or infrastructure details.

Technologies: [Zhayujie CowAgent](https://junglewise.ai/threats/technologies/cowagent). Vendors: [Zhayujie](https://junglewise.ai/threats/vendors/zhayujie).

## Quick answers

**Is CVE-2026-15330 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-15330 being exploited in the wild.

**How severe is CVE-2026-15330?** High severity, with a CVSS score of 7.3, published 10 July 2026.

**Which products and versions are affected?** Zhayujie CowAgent up to 2.1.1.

**Is there a fix for CVE-2026-15330?** A patch was published on 2026-06-11: Fix committed to repository Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-15330 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-15330?** Check whether you run Zhayujie CowAgent 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

A Server-Side Request Forgery (SSRF) vulnerability exists in CowAgent up to version 2.1.1 within the Vision Tool component. The functions `_build_image_content` and `_download_to_data_url` in `agent/tools/vision/vision.py` fail to validate user-supplied image URLs before fetching them. A remote, unauthenticated attacker can provide a URL pointing to internal loopback addresses (e.g., 127.0.0.1) or private network ranges (RFC1918) to probe internal services or cloud metadata endpoints. The issue is resolved in version 2.1.2 by implementing DNS resolution and IP range validation in a new `_validate_url_safe()` function.

## Affected products

- zhayujie CowAgent up to 2.1.1

## Timeline

- 2026-06-09: disclosed: Issue reported on GitHub
- 2026-06-11: patched: Fix committed to repository
- 2026-07-10: advisory: CVE published to NVD

## References

- [https://github.com/zhayujie/CowAgent/](https://github.com/zhayujie/CowAgent/)
- [https://github.com/zhayujie/CowAgent/commit/e85290cddcbb5ffc9c235927f4c92e5b4c3ec264](https://github.com/zhayujie/CowAgent/commit/e85290cddcbb5ffc9c235927f4c92e5b4c3ec264)
- [https://github.com/zhayujie/CowAgent/issues/2872](https://github.com/zhayujie/CowAgent/issues/2872)
- [https://github.com/zhayujie/CowAgent/pull/2886](https://github.com/zhayujie/CowAgent/pull/2886)
- [https://github.com/zhayujie/CowAgent/releases/tag/2.1.2](https://github.com/zhayujie/CowAgent/releases/tag/2.1.2)
- [https://vuldb.com/cve/CVE-2026-15330](https://vuldb.com/cve/CVE-2026-15330)
- [https://vuldb.com/submit/853103](https://vuldb.com/submit/853103)

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