PYSEC-2026-1999 urllib3 redirects are not disabled when retries are disabled on PoolManager instantiation

urllib3 handles redirects and retries using the same mechanism, which is controlled by the Retry object. The most common way to disable redirects is at the request level, as follows: python resp = urllib3.request"GET", "https://httpbin.org/redirect/1", redirect=False printresp.status 302 However,...

PYSEC-2026-1281 Crawl4AI SSRF vulnerability

Crawl4AI =0.4.247 is vulnerable to SSRF in /crawl4ai/asyncdispatcher.py...

GO-2026-5898 Casdoor SAML callback handler accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest in github.com/casdoor/casdoor

Casdoor SAML callback handler accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest in github.com/casdoor/casdoor...

GO-2026-5836 Mattermost doesn't enforce request body size limits on plugin HTTP endpoints in github.com/mattermost/mattermost-plugin-github

Mattermost doesn't enforce request body size limits on plugin HTTP endpoints in github.com/mattermost/mattermost-plugin-github...

GO-2026-5833 Mattermost doesn't validate user-supplied input in API request handlers in github.com/mattermost/mattermost-plugin-github

Mattermost doesn't validate user-supplied input in API request handlers in github.com/mattermost/mattermost-plugin-github...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the OIDC discovery process. An attacker can cause the service to follow malicious redirects, leading to server-side request forgery and potential exposure of Kubernetes service-account tokens by...

SUSE CVE-2026-54764

Traefik is an HTTP reverse proxy and load balancer. Prior to v2.11.51, v3.6.22, and v3.7.6, Traefik's ForwardAuth middleware, even when configured with trustForwardHeader: false, derives the X-Forwarded-Port header sent to the authentication service from the original incoming request instead of t...

PYSEC-2026-1545 LiteLLM Vulnerable to Denial of Service (DoS) via Crafted HTTP Request

A Denial of Service DoS vulnerability exists in berriai/litellm version v1.44.5. This vulnerability can be exploited by appending characters, such as dashes -, to the end of a multipart boundary in an HTTP request. The server continuously processes each character, leading to excessive resource...

PYSEC-2026-1438 H2O Vulnerable to Denial of Service (DoS) via `HEAD` Request

A vulnerability in the typeahead endpoint of h2oai/h2o-3 version 3.46.0 allows for a denial of service. The endpoint performs a HEAD request to verify the existence of a specified resource without setting a timeout. An attacker can exploit this by sending multiple requests to an attacker-controll...

H2O Vulnerable to Denial of Service (DoS) via `HEAD` Request

A vulnerability in the typeahead endpoint of h2oai/h2o-3 version 3.46.0 allows for a denial of service. The endpoint performs a HEAD request to verify the existence of a specified resource without setting a timeout. An attacker can exploit this by sending multiple requests to an attacker-controll...

PYSEC-2026-1411 Gradio Vulnerable to Open Redirect

An open redirect vulnerability exists in the latest version of gradio-app/gradio. The vulnerability allows an attacker to redirect users to a malicious website by URL encoding. This can be exploited by sending a crafted request to the application, which results in a 302 redirect to an...

PYSEC-2026-1433 Gunicorn HTTP Request/Response Smuggling vulnerability

Gunicorn version 21.2.0 does not properly validate the value of the 'Transfer-Encoding' header as specified in the RFC standards, which leads to the default fallback method of 'Content-Length,' making it vulnerable to TE.CL request smuggling. This vulnerability can lead to cache poisoning, data...

FastChat Server-Side Request Forgery vulnerability

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...

imaginAIry Denial of Service (DoS) vulnerability

A Denial of Service DoS vulnerability exists in the brycedrennan/imaginairy repository, version 15.0.0. The vulnerability is present in the /api/stablestudio/generate endpoint, which can be exploited by sending an invalid request. This causes the server process to terminate abruptly, outputting...

PYSEC-2026-1421 Gradio Vulnerable to Denial of Service (DoS) via Crafted HTTP Request

A Regular Expression Denial of Service ReDoS vulnerability exists in the gradio-app/gradio repository, affecting the gr.Datetime component. The affected version is git commit 98cbcae. The vulnerability arises from the use of a regular expression ^?:\snow\s?:-\s\d+\sdmhs??\s$ to process user input...

PYSEC-2026-1503 Label Studio allows Server-Side Request Forgery in the S3 Storage Endpoint

Description Label Studio's S3 storage integration feature contains a Server-Side Request Forgery SSRF vulnerability in its endpoint configuration. When creating an S3 storage connection, the application allows users to specify a custom S3 endpoint URL via the s3endpoint parameter. This endpoint U...

PYSEC-2026-1504 Label Studio allows Cross-Site Scripting (XSS) via GET request to `/projects/upload-example` endpoint

Description Label Studio's /projects/upload-example endpoint allows injection of arbitrary HTML through a GET request with an appropriately crafted labelconfig query parameter. By crafting a specially formatted XML label config with inline task data containing malicious HTML/JavaScript, an attack...

PYSEC-2026-1459 Indico Insecure Access

A Broken Object Level Authorization BOLA vulnerability in Indico v3.2.9 allows attackers to access sensitive information via sending a crafted POST request to the component /api/principals...

PYSEC-2026-1103 aiohttp allows request smuggling due to incorrect parsing of chunk extensions

Summary The Python parser parses newlines in chunk extensions incorrectly which can lead to request smuggling vulnerabilities under certain conditions. Impact If a pure Python version of aiohttp is installed i.e. without the usual C extensions or AIOHTTPNOEXTENSIONS is enabled, then an attacker m...

PYSEC-2026-1944 Litestar allows unbounded resource consumption (DoS vulnerability)

Summary Litestar offers multiple methods to return a parsed representation of the request body, as well as extractors that rely on those parsers to map request content to structured data types. Multiple of those parsers do not have size limits when reading the request body into memory, which allo...