Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
10 results
Sep 4, 2026FastChat contains an authentication bypass vulnerability in the /register_worker endpoint that allows unauthenticated attackers to register arbitrary worker addCVE-2026-85695 · Other software · lm-sys · reported by VulnCheckCritical 9.3
FastChat contains an authentication bypass vulnerability in the /register_worker endpoint that allows unauthenticated attackers to register arbitrary worker addresses and perform server-side request forgery. Attackers can register malicious workers under victim model names to intercept user prompts, images, and responses, or probe internal network ports across the worker mesh.
- Product
- FastChat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 20, 2026A vulnerability was detected in lm-sys fastchat up to 0.2.36.CVE-2026-6608 · Other software · lm-sys · reported by VulDBMedium 5.5
A vulnerability was detected in lm-sys fastchat up to 0.2.36. Impacted is the function add_text of the component Arena Side-by-Side View Handler. The manipulation results in incorrect control flow. The attack can be launched remotely. The exploit is now public and may be used. The root cause was fixed in commit 34eca62 for gradio_block_arena_named.py, but three other files were missed.
- Product
- fastchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgist.github.comgithub.com
Apr 20, 2026A security vulnerability has been detected in lm-sys fastchat up to 0.2.36.CVE-2026-6607 · Other software · lm-sys · reported by VulDBMedium 5.5
A security vulnerability has been detected in lm-sys fastchat up to 0.2.36. This issue affects the function api_generate of the component Worker API Endpoint. The manipulation leads to resource consumption. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is c9e84b89c91d45191dc24466888de526fa04cf33. It is suggested to install a patch to address this issue. Commit ff66426 patched this issue in api_generate of base_model_worker.py and did miss other entry points.
- Product
- fastchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgist.github.comgithub.com
Apr 16, 2025A vulnerability classified as critical was found in lm-sys fastchat up to 0.2.36.CVE-2025-3677 · Other software · lm-sys · reported by VulDBMedium 4.8
A vulnerability classified as critical was found in lm-sys fastchat up to 0.2.36. This vulnerability affects the function split_files/apply_delta_low_cpu_mem of the file fastchat/model/apply_delta.py. The manipulation leads to deserialization. An attack has to be approached locally.
- Product
- fastchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 20, 2025A Server-Side Request Forgery (SSRF) vulnerability was identified in the lm-sys/fastchat web server, specifically in the affected version git 2c68a13.CVE-2024-12376 · Other software · lm-sys · reported by security@huntr.devHigh 7.5
A Server-Side Request Forgery (SSRF) vulnerability was identified in the lm-sys/fastchat web server, specifically in the affected version git 2c68a13. This vulnerability allows an attacker to access internal server resources and data that are otherwise inaccessible, such as AWS metadata credentials.
- Product
- lm-sys/fastchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 20, 2025A Server-Side Request Forgery (SSRF) vulnerability exists in lm-sys/fastchat version 0.2.36.CVE-2024-11603 · Other software · lm-sys · reported by security@huntr.devHigh 7.5
A Server-Side Request Forgery (SSRF) vulnerability exists in lm-sys/fastchat version 0.2.36. The vulnerability is present in the `/queue/join?` endpoint, where insufficient validation of the path parameter allows an attacker to send crafted requests. This can lead to unauthorized access to internal networks or the AWS metadata endpoint, potentially exposing sensitive data and compromising internal servers.
- Product
- lm-sys/fastchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 20, 2025A Denial of Service (DoS) vulnerability exists in the file upload feature of lm-sys/fastchat version 0.2.36.CVE-2024-10912 · Other software · lm-sys · reported by security@huntr.devHigh 7.5
A Denial of Service (DoS) vulnerability exists in the file upload feature of lm-sys/fastchat version 0.2.36. The vulnerability is due to improper handling of form-data with a large filename in the file upload request. An attacker can exploit this by sending a payload with an excessively large filename, causing the server to become overwhelmed and unavailable to legitimate users.
- Product
- lm-sys/fastchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 20, 2025An open redirect vulnerability in lm-sys/fastchat Release v0.2.36 allows a remote unauthenticated attacker to redirect users to arbitrary websites via a specialCVE-2024-10908 · Other software · lm-sys · reported by security@huntr.devMedium 6.1
An open redirect vulnerability in lm-sys/fastchat Release v0.2.36 allows a remote unauthenticated attacker to redirect users to arbitrary websites via a specially crafted URL. This can be exploited for phishing attacks, malware distribution, and credential theft.
- Product
- lm-sys/fastchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 20, 2025In lm-sys/fastchat Release v0.2.36, the server fails to handle excessive characters appended to the end of multipart boundaries.CVE-2024-10907 · Other software · lm-sys · reported by security@huntr.devHigh 7.5
In lm-sys/fastchat Release v0.2.36, the server fails to handle excessive characters appended to the end of multipart boundaries. This flaw can be exploited by sending malformed multipart requests with arbitrary characters at the end of the boundary. Each extra character is processed in an infinite loop, leading to excessive resource consumption and a complete denial of service (DoS) for all users. The vulnerability is unauthenticated, meaning no user login or interaction is required for an attacker to exploit this issue.
- Product
- lm-sys/fastchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Dec 30, 2024A Server-Side Request Forgery (SSRF) vulnerability exists in the POST /worker_generate_stream API endpoint of the Controller API Server in lm-sys/fastchat, as oCVE-2024-10044 · Other software · lm-sys · reported by security@huntr.devCritical 9.3
A Server-Side Request Forgery (SSRF) vulnerability exists in the POST /worker_generate_stream API endpoint of the Controller API Server in lm-sys/fastchat, as of commit e208d5677c6837d590b81cb03847c0b9de100765. This vulnerability allows attackers to exploit the victim controller API server's credentials to perform unauthorized web actions or access unauthorized web resources by combining it with the POST /register_worker endpoint.
- Product
- lm-sys/fastchat
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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