Tornado vulnerable to excessive logging caused by malformed multipart form data

SummaryWhen Tornado's multipart/form-data parser encounters certain errors, it logs a warning but continues trying to parse the remainder of the data. This allows remote attackers to generate an extremely high volume of logs, constituting a DoS attack. This DoS is compounded by the fact that the...

GO-2026-5804 Remark42: Cross-Site Scripting (XSS) on /api/v1/img via content-type spoofing in github.com/umputun/remark42

Remark42: Cross-Site Scripting XSS on /api/v1/img via content-type spoofing in github.com/umputun/remark42...

GO-2026-5827 gonic has arbitrary file write in createPlaylist: any authenticated user can write playlist M3U content to attacker-controlled path on the host in go.senan.xyz/gonic

gonic has arbitrary file write in createPlaylist: any authenticated user can write playlist M3U content to attacker-controlled path on the host in go.senan.xyz/gonic...

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-2026-1472 Jinja has a sandbox breakout through malicious filenames

A bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja's sandbox is used. To exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether...

PYSEC-2026-1613 Synapse allows unsupported content types to lead to memory exhaustion

Impact In Synapse before 1.120.1, multipart/form-data requests can in certain configurations transiently increase memory consumption beyond expected levels while processing the request, which can be used to amplify denial of service attacks. Patches Synapse 1.120.1 resolves the issue by denying...

PYSEC-2026-1123 Ansible-Core vulnerable to content protections bypass

A flaw was found in Ansible-Core. This vulnerability allows attackers to bypass unsafe content protections using the hostvars object to reference and execute templated content. This issue can lead to arbitrary code execution if remote data or module outputs are improperly templated within playboo...

PYSEC-2026-1860 Werkzeug possible resource exhaustion when parsing file data in forms

Applications using Werkzeug to parse multipart/form-data requests are vulnerable to resource exhaustion. A specially crafted form body can bypass the Request.maxformmemorysize setting. The Request.maxcontentlength setting, as well as resource limits provided by deployment software and platforms,...

PYSEC-2026-1306 Reverb use after free vulnerability

There exists a use after free vulnerability in Reverb. Reverb supports the VARIANT datatype, which is supposed to represent an arbitrary object in C++. When a tensor proto of type VARIANT is unpacked, memory is first allocated to store the entire tensor, and a ctor is called on each instance...

PYSEC-2026-1599 Mage AI Path Traversal vulnerability

Mage AI allows remote users with the "Viewer" role to leak arbitrary files from the Mage server due to a path traversal in the "Git Content" request...

PYSEC-2026-1601 Mage AI Path Traversal vulnerability

Mage AI allows remote users with the "Viewer" role to leak arbitrary files from the Mage server due to a path traversal in the "File Content" request...

PYSEC-2026-1914 Sentry vulnerable to stored Cross-Site Scripting (XSS)

Impact An unsanitized payload sent by an Integration platform integration allows the storage of arbitrary HTML tags on the Sentry side. This payload could subsequently be rendered on the Issues page, creating a Stored Cross-Site Scripting XSS vulnerability. This vulnerability might lead to the...

PYSEC-2026-1302 TinyMCE Cross-Site Scripting (XSS) vulnerability using noscript elements

Impact A cross-site scripting XSS vulnerability was discovered in TinyMCE’s content parsing code. This allowed specially crafted noscript elements containing malicious code to be executed when that content was loaded into the editor. Patches This vulnerability has been patched in TinyMCE 7.2.0,...

PYSEC-2026-1301 TinyMCE Cross-Site Scripting (XSS) vulnerability using noneditable_regexp option

Impact A cross-site scripting XSS vulnerability was discovered in TinyMCE’s content extraction code. When using the noneditableregexp option, specially crafted HTML attributes containing malicious code were able to be executed when content was extracted from the editor. Patches This vulnerability...

PYSEC-2026-2049 Denial of service via regular expression

Impact All historical installations of django-wiki are vulnerable to maliciously crafted article content, that can cause severe use of server CPU through a regular expression loop. Patches Workarounds Close off access to create and edit articles by anonymous users. References Are there any links...

python-multipart vulnerable to Content-Type Header ReDoS

SummaryWhen using form data, python-multipart uses a Regular Expression to parse the HTTP Content-Type header, including options.An attacker could send a custom-made Content-Type option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely minutes or...

PYSEC-2026-1850 python-multipart vulnerable to Content-Type Header ReDoS

Summary When using form data, python-multipart uses a Regular Expression to parse the HTTP Content-Type header, including options. An attacker could send a custom-made Content-Type option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely minutes or...

Kiwi TCMS's misconfigured HTTP headers allow stored XSS execution with Firefox

ImpactKiwi TCMS allows users to upload attachments to test plans, test cases, etc. Earlier versions of Kiwi TCMS had introducedchanges which were meant to serve all uploaded files as plain text in order to prevent browsers from executing potentially dangerous files when such files are accessed...

PYSEC-2026-1500 kiwitcms vulnerable to stored XSS via unrestricted files upload

Impact Kiwi TCMS allows users to upload attachments to test plans, test cases, etc. Earlier versions of Kiwi TCMS had introduced upload validators in order to prevent potentially dangerous files from being uploaded, see GHSA-fwcf-753v-fgcj and Content-Security-Policy definition to prevent...

PYSEC-2026-1496 Kiwi TCMS Stored Cross-site Scripting via SVG file

Impact Kiwi TCMS accepts SVG files uploaded by users which could potentially contain JavaScript code. If SVG images are viewed directly, i.e. not rendered in an HTML page, this JavaScript code could execute. Patches This vulnerability has been fixed by configuring Kiwi TCMS to serve with the...