CVE-2026-4339 SSRF via unvalidated attachment URLs in Mattermost Agents plugin MCP server

Mattermost versions 10.11.x = 10.11.18, 11.6.x = 11.6.3, 11.5.x = 11.5.6 fail to validate attachment URLs against internal or private IP ranges in the Mattermost Agents plugin MCP server which allows an attacker with access to the MCP server in stdio mode to perform server-side request forgery SS...

CVE-2026-53236

A flaw was found in the Linux kernel's handling of TCP sockets. An unprivileged application can exploit this vulnerability by attaching a Berkeley Packet Filter BPF using the SOATTACHFILTER option. This allows the application to conduct a side-channel attack, leading to the leakage of sensitive T...

CVE-2026-13324

A vulnerability has been identified in the GNOME Geary package within its mailto URI handling component. This flaw occurs because the email client automatically processes a non-standard attach parameter in email links without prompting or alerting the user. An attacker could exploit this by...

GO-2026-5536 Gogs Missing Authorization in Attachment Download in gogs.io/gogs

Gogs Missing Authorization in Attachment Download in gogs.io/gogs. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive reports from vulnerability scanners, please suggest an...

CVE-2025-71333 Flowise - Arbitrary File Upload via Unauthenticated /api/v1/attachments Endpoint

Flowise through 2.2.4 contains an unauthenticated arbitrary file upload vulnerability in the /api/v1/attachments endpoint when storageType is set to local. Attackers can exploit path traversal in the chatId and chatflowId parameters to upload malicious files to arbitrary directories, potentially...

CVE-2026-48944

The K2 frontend article-save handler accepts an attachmentNexisting POST field that is concatenated with JPATHSITE/ and passed to JFile::copy. JPath::clean does NOT strip .., and there is no allow-list of source paths. An Author can therefore copy configuration.php or any other file readable by t...

CVE-2026-48946

CVE-2026-48946 affects the K2 frontend Joomla extension (getk2.com) prior to version 2.26. The issue allows a K2 Author to upload a PHP file (e.g., shell.php) via the article-attachment upload path; Apache mod_php executes the file under the K2 web user, enabling arbitrary PHP code execution in t...

CVE-2026-48944

Summary: CVE-2026-48944 affects the K2 Joomla extension (getk2.com) where the frontend article-save handler accepts a parameter attachment[N][existing] that is concatenated with JPATH_SITE/ and passed to JFile::copy(). Since JPath::clean does not strip “..” and there is no allow-list of source pa...

CVE-2026-48944 Joomla Extension - getk2.org - Exposure of sensitive files via attachment copy in K2 extension for Joomla < 2.26

The K2 frontend article-save handler accepts an attachmentNexisting POST field that is concatenated with JPATHSITE/ and passed to JFile::copy. JPath::clean does NOT strip .., and there is no allow-list of source paths. An Author can therefore copy configuration.php or any other file readable by t...

CVE-2026-48944

The K2 frontend article-save handler accepts an attachmentNexisting POST field that is concatenated with JPATHSITE/ and passed to JFile::copy. JPath::clean does NOT strip .., and there is no allow-list of source paths. An Author can therefore copy configuration.php or any other file readable by t...

CVE-2026-48944 Joomla Extension - getk2.org - Exposure of sensitive files via attachment copy in K2 extension for Joomla < 2.26

The K2 frontend article-save handler accepts an attachmentNexisting POST field that is concatenated with JPATHSITE/ and passed to JFile::copy. JPath::clean does NOT strip .., and there is no allow-list of source paths. An Author can therefore copy configuration.php or any other file readable by t...

CVE-2026-48944

The K2 frontend article-save handler accepts an attachmentNexisting POST field that is concatenated with JPATHSITE/ and passed to JFile::copy. JPath::clean does NOT strip .., and there is no allow-list of source paths. An Author can therefore copy configuration.php or any other file readable by t...

EUVD-2026-39440

The K2 frontend article-save handler accepts an attachmentNexisting POST field that is concatenated with JPATHSITE/ and passed to JFile::copy. JPath::clean does NOT strip .., and there is no allow-list of source paths. An Author can therefore copy configuration.php or any other file readable by t...

UNIX Symbolic Link (Symlink) Following

Overview Affected versions of this package are vulnerable to UNIX Symbolic Link Symlink Following through the WriteToCachedFile function when handling network cache files in certain configurations. An attacker can overwrite specific host files and change their ownership by planting a symbolic lin...

CVE-2026-52799

Gogs is an open source self-hosted Git service. Prior to 0.14.3, GET /attachments/:uuid returns the raw attachment file without verifying whether the requester has view permission for the associated Issue/Comment/Release or the repository. In a test environment with REQUIRESIGNINVIEW = false, we...

CVE-2026-52799

Gogs is an open source self-hosted Git service. Prior to 0.14.3, GET /attachments/:uuid returns the raw attachment file without verifying whether the requester has view permission for the associated Issue/Comment/Release or the repository. In a test environment with REQUIRESIGNINVIEW = false, we...

CVE-2026-52799 Gogs: Missing Authorization in Attachment Download

Gogs is an open source self-hosted Git service. Prior to 0.14.3, GET /attachments/:uuid returns the raw attachment file without verifying whether the requester has view permission for the associated Issue/Comment/Release or the repository. In a test environment with REQUIRESIGNINVIEW = false, we...

CVE-2026-52799

Gogs (version

CVE-2026-52799 Gogs: Missing Authorization in Attachment Download

Gogs is an open source self-hosted Git service. Prior to 0.14.3, GET /attachments/:uuid returns the raw attachment file without verifying whether the requester has view permission for the associated Issue/Comment/Release or the repository. In a test environment with REQUIRESIGNINVIEW = false, we...

CVE-2026-52799 Gogs: Missing Authorization in Attachment Download

Gogs is an open source self-hosted Git service. Prior to 0.14.3, GET /attachments/:uuid returns the raw attachment file without verifying whether the requester has view permission for the associated Issue/Comment/Release or the repository. In a test environment with REQUIRESIGNINVIEW = false, we...