Vulnerability · Published Aug 7, 2026 · Assigned by VulDB
CVE-2026-19246HKUDS nanobot Provider-returned Image URL image_generation.py _download_image_data_url server-side request forgery
Medium 6.3
In plain English
A medium-severity server-side request forgery in nanobot from HKUDS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Official description
A vulnerability has been found in HKUDS nanobot up to 0.2.1. This affects the function _download_image_data_url of the file nanobot/providers/image_generation.py of the component Provider-returned Image URL Handler. The manipulation leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of the patch is 5095. It is recommended to apply a patch to fix this issue. The vendor explains: "We confirm that provider-returned image URLs required the same SSRF protections applied to other network retrieval paths. (...) The patch is currently available on main and is planned for the next patch release, v0.3.1."
Affected products (as reported)
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-387000 | HKUDS nanobot Provider-returned Image URL image_generation.py _download_image_data_url server-side request forgery vdb-entry, technical-description
- VDB-387000 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-19246 | CVE Analysis and Report third-party-advisory
- Submit #865113 | HKUDS nanobot 0.2.1 Server-Side Request Forgery (CWE-918) third-party-advisory
- https://gist.github.com/YLChen-007/44bc77ac259e461c6938cc6c286c4430 exploit
- https://github.com/HKUDS/nanobot/pull/5095 issue-tracking, patch
- https://github.com/HKUDS/nanobot/ product