PYSEC-2026-1689 Nautobot may allows uploaded media files to be accessible without authentication

Impact Files uploaded by users to Nautobot's MEDIAROOT directory, including DeviceType image attachments as well as images attached to a Location, Device, or Rack, are served to users via a URL endpoint that was not enforcing user authentication. As a consequence, such files can be retrieved by...

GO-2026-5835 Mattermost doesn't validate the TIFF IFD offset in the image header before allocating memory in github.com/mattermost/mattermost-server

Mattermost doesn't validate the TIFF IFD offset in the image header before allocating memory in github.com/mattermost/mattermost-server...

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...

SUSE CVE-2026-55380

Pillow is a Python imaging library. Prior to 12.3.0, PIL/GdImageFile.py GdImageFile.open read image dimensions from the GD 2.x header and stored them in self.size without calling Image.decompressionbombcheck, allowing a crafted .gd file to trigger excessive C-heap allocation when loaded. This iss...

PYSEC-2026-1089 Aim Uncontrolled Resource Consumption vulnerability

In version 3.25.0 of aimhubio/aim, the tracking server is vulnerable to a denial of service attack. The server overrides the maximum size for websocket messages, allowing very large images to be tracked. This causes the server to become unresponsive to other requests while processing the large...

PYSEC-2026-1720 Open WebUI Vulnerable to a Session Fixation Attack

A vulnerability in open-webui/open-webui version 0.3.8 allows an attacker with a user-level account to perform a session fixation attack. The session cookie for all users is set with the default SameSite=Lax and does not have the Secure flag enabled, allowing the session cookie to be sent over HT...

PYSEC-2026-1517 langchain-core allows unauthorized users to read arbitrary files from the host file system

A vulnerability in langchain-core versions =0.1.17,=0.2.0,=0.3.0,0.3.15 allows unauthorized users to read arbitrary files from the host file system. The issue arises from the ability to create langchaincore.prompts.ImagePromptTemplate's and by extension langchaincore.prompts.ChatPromptTemplate's...

PYSEC-2026-1406 GluonCV Arbitrary File Write via TarSlip

A vulnerability in the ImageClassificationDataset.fromcsv API of the dmlc/gluon-cv repository, version 0.10.0, allows for arbitrary file write. The function downloads and extracts tar.gz files from URLs without proper sanitization, making it susceptible to a TarSlip vulnerability. Attackers can...

GluonCV Arbitrary File Write via TarSlip

A vulnerability in the ImageClassificationDataset.fromcsv API of the dmlc/gluon-cv repository, version 0.10.0, allows for arbitrary file write. The function downloads and extracts tar.gz files from URLs without proper sanitization, making it susceptible to a TarSlip vulnerability. Attackers can...

PYSEC-2026-1466 InvokeAI has Denial of Service (DoS) vulnerability in `/api/v1/images/upload`

A Denial of Service DoS vulnerability in the multipart request boundary processing mechanism of the Invoke-AI server version v5.0.1 allows unauthenticated attackers to cause excessive resource consumption. The server fails to handle excessive characters appended to the end of multipart boundaries...

PYSEC-2026-1353 Exiv2 allows Use After Free

Impact A heap buffer overflow was found in Exiv2 versions v0.28.0 to v0.28.4. Versions prior to v0.28.0, such as v0.27.7, are not affected. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The heap overflow is triggered whe...

PYSEC-2026-1615 Synapse can be forced to thumbnail unexpected file formats, invoking external, potentially untrustworthy decoders

Impact In Synapse versions before 1.120.1, enabling the dynamicthumbnails option or processing a specially crafted request could trigger the decoding and thumbnail generation of uncommon image formats, potentially invoking external tools like Ghostscript for processing. This significantly expands...

PYSEC-2026-1468 OpenStack Ironic fails to verify checksums of supplied image_source URLs

In OpenStack Ironic before 21.4.4, 22.x and 23.x before 23.0.3, 23.x and 24.x before 24.1.3, and 25.x and 26.x before 26.1.0, there is a lack of checksum validation of supplied imagesource URLs when configured to convert images to a raw format for streaming...

PYSEC-2026-1709 OpenStack Nova vulnerable to unauthorized access to potentially sensitive data

In OpenStack Nova before 27.4.1, 28 before 28.2.1, and 29 before 29.1.1, by supplying a raw format image that is actually a crafted QCOW2 image with a backing file path or VMDK flat image with a descriptor file path, an authenticated user may convince systems to return a copy of the referenced...

PYSEC-2026-1708 OpenStack Cinder, Glance, and Nova vulnerable to arbitrary file access

An issue was discovered in OpenStack Cinder through 24.0.0, Glance before 28.0.2, and Nova before 29.0.3. Arbitrary file access can occur via custom QCOW2 external data. By supplying a crafted QCOW2 image that references a specific data file path, an authenticated user may convince systems to...

GHSA-C8M7-R2JV-RW63 EGroupware Vulnerable to Local File Inclusion via file:// URI in Mail Compose

Summary The function processes image URLs embedded in an HTML email body without validating or restricting URI schemes. The check !strstartswith$myUrl, 'http' evaluates to true for file:// URIs, causing filegetcontents$basedir . urldecode$myUrl to read arbitrary files from the server filesystem a...

External Control of File Name or Path

Overview egroupware/egroupware is a library that extends a classic groupware with an integrated CRM-system, a secure file-server and Collabora Online Office. Affected versions of this package are vulnerable to External Control of File Name or Path via the processURL2InlineImages process. An...

PYSEC-2026-1793 Pillow buffer overflow vulnerability

In imagingcms.c in Pillow before 10.3.0, a buffer overflow exists because strcpy is used instead of strncpy...

PYSEC-2026-1310 Docassemble open redirect

Impact It is possible to create a URL that acts as an open redirect. Patches The vulnerability has been patched in version 1.4.97 of the master branch. The Docker image on docker.io has been patched. Workarounds If upgrading is not possible, manually apply the changes of 4801ac7 and restart the...

PYSEC-2026-2003 vantage6 has insecure SSH configuration for node and server containers

Impact Nodes and servers get a ssh config by default that permits root login with password authentication. In a proper deployment, the SSH service is not exposed so there is no risk, but not all deployments are ideal. The default should therefore be less permissive. We will probably opt to...