CVE-2026-19246 HKUDS nanobot Provider-returned Image URL image_generation.py _download_image_data_url server-side request forgery
Attacker can exploit server-side request forgery in nanobot image generation to access internal resources or bypass network restrictions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19246?
CVE-2026-19246 is a medium-severity server-side request forgery vulnerability in HKUDS nanobot, published on 7 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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."
Weakness: CWE-918
Which versions are affected by CVE-2026-19246?
How do I fix CVE-2026-19246?
No fix has been published for CVE-2026-19246 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-19246 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19246 exists.
Sources
Also known as GHSA-g4fw-p4hw-gq39.