Researchers at Wiz found that nearly one in ten internet-facing LiteLLM servers still accept "sk-1234," the example administrator key printed in LiteLLM's own setup guide. LiteLLM is an open-source AI gateway that sits between an organization's apps and the model providers it pays for, and that admin key unlocks every stored provider API key; in Wiz's tests it even reached the cloud identity credentials of the host machine. The finding accompanies a cluster of exploited LiteLLM flaws that attackers have used to run code, steal secrets, and deploy crypto miners, with one ransomware group and a Microsoft-documented breach among them. Microsoft's advice is to treat AI gateways as top-tier secrets stores.
Attackers are actively probing LiteLLM deployments for an authorization flaw that turns a low-privilege account into full control of the AI gateway. Tracked as CVE-2026-35029 and affecting versions before 1.83.0, the flaw is a missing permission check on the configuration-update endpoint, so a read-only user can change settings reserved for administrators. LiteLLM sits between applications and model providers and stores provider API keys, database details, and admin credentials, making it a rich target. By abusing configuration writes, an attacker can extract secrets from server environment files and even reset the dashboard login to seize admin access. Researchers recorded thousands of probing requests, some directly attempting to read known secret files.
VulnCheck reported active exploitation of two critical flaws, one in the AI workflow builder Langflow and one in Ruby on Rails. The Langflow bug, CVE-2026-0768, scored 9.8, lets an attacker run arbitrary Python code as root through improper input validation. The Rails bug, CVE-2026-66066 and nicknamed KindaRails2Shell at 9.5, lets an unauthenticated attacker read arbitrary files by uploading a crafted image that exploits a mismatch between Active Storage and the libvips image library, leaking secrets like the Rails master key and cloud credentials and ultimately enabling code execution. Detections jumped from about 50 to 360 within a day, with attackers querying environment variables for OpenAI and AWS keys and probing SSH access.