PYSEC-2026-4092 MCP Atlassian: Arbitrary server-local file upload to Jira/Confluence attachments via unrestricted file_path parameters

Summary The Jira and Confluence attachment upload tools accept caller-controlled file path parameters and read those paths from the MCP server's local filesystem before uploading the file as an Atlassian attachment. In local stdio deployments, this can expose files readable by the user's MCP...

MCP Atlassian: Jira and Confluence attachment upload tools can read arbitrary server-local files

SummaryMCP Atlassian exposes Jira and Confluence attachment upload tools that accept arbitrary local filesystem paths and upload those file contents to Atlassian. In HTTP or multi-user deployments, an MCP caller who can invoke write tools can cause the server to read any file accessible to the MC...

postcss: PostCSS: Information disclosure and denial of service via crafted CSS input

A flaw was found in PostCSS, a tool that processes CSS files. An attacker who provides specially crafted CSS input containing a malicious source map comment can cause the system to read arbitrary files from the local filesystem. This can lead to the disclosure of sensitive information, specifical...

PT-2026-105851

Summary MCP Atlassian exposes Jira and Confluence attachment upload tools that accept arbitrary local filesystem paths and upload those file contents to Atlassian. In HTTP or multi-user deployments, an MCP caller who can invoke write tools can cause the server to read any file accessible to the M...

CVE-2026-100676

January, the media proxy/embed service of stoatchat stoatchat/stoatchat, before version 0.15.5 improperly resolves SVG values as local filesystem paths when a fetched resource is served as image/svg+xml. An unauthenticated remote attacker who causes the service to proxy an attacker-hosted SVG e.g...

CVE-2026-100676 stoatchat before 0.15.5 Local Filesystem Read via SVG

January, the media proxy/embed service of stoatchat stoatchat/stoatchat, before version 0.15.5 improperly resolves SVG values as local filesystem paths when a fetched resource is served as image/svg+xml. An unauthenticated remote attacker who causes the service to proxy an attacker-hosted SVG e.g...

CVE-2026-100676 stoatchat before 0.15.5 Local Filesystem Read via SVG

January, the media proxy/embed service of stoatchat stoatchat/stoatchat, before version 0.15.5 improperly resolves SVG values as local filesystem paths when a fetched resource is served as image/svg+xml. An unauthenticated remote attacker who causes the service to proxy an attacker-hosted SVG e.g...

CVE-2026-100676

The media proxy/embed service of stoatchat (stoatchat/stoatchat) before version 0.15.5 contains a vulnerability where it improperly resolves SVG values as local filesystem paths when a fetched resource is served as image/svg+xml . An unauthenticated remote attacker can exploit this via the /prox...

CVE-2026-100676 stoatchat before 0.15.5 Local Filesystem Read via SVG

January, the media proxy/embed service of stoatchat stoatchat/stoatchat, before version 0.15.5 improperly resolves SVG values as local filesystem paths when a fetched resource is served as image/svg+xml. An unauthenticated remote attacker who causes the service to proxy an attacker-hosted SVG e.g...

CVE-2026-100676: Protection Mechanism Failure

January, the media proxy/embed service of stoatchat stoatchat/stoatchat, before version 0.15.5 improperly resolves SVG values as local filesystem paths when a fetched resource is served as image/svg+xml. An unauthenticated remote attacker who causes the service to proxy an attacker-hosted SVG e.g...

CVE-2026-77253

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, Jira and Confluence attachment upload tools accept arbitrary local filesystem paths and send the selected bytes to Atlassian. In HTTP or multi-user deployments, a caller can cross the...

EUVD-2026-84742

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, Jira and Confluence attachment upload tools accept arbitrary local filesystem paths and send the selected bytes to Atlassian. In HTTP or multi-user deployments, a caller can cross the...

CVE-2026-77253 MCP Atlassian: Jira and Confluence attachment upload tools can read arbitrary server-local files

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, Jira and Confluence attachment upload tools accept arbitrary local filesystem paths and send the selected bytes to Atlassian. In HTTP or multi-user deployments, a caller can cross the...

CVE-2026-77253 MCP Atlassian: Jira and Confluence attachment upload tools can read arbitrary server-local files

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, Jira and Confluence attachment upload tools accept arbitrary local filesystem paths and send the selected bytes to Atlassian. In HTTP or multi-user deployments, a caller can cross the...

CVE-2026-77253 MCP Atlassian: Jira and Confluence attachment upload tools can read arbitrary server-local files

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, Jira and Confluence attachment upload tools accept arbitrary local filesystem paths and send the selected bytes to Atlassian. In HTTP or multi-user deployments, a caller can cross the...

CVE-2026-77253

The MCP Atlassian Model Context Protocol server (versions prior to 0.22.0 ) contains a vulnerability where the Jira and Confluence attachment upload tools accept arbitrary local filesystem paths. An attacker can cross the client-to-server filesystem boundary to disclose sensitive data, such as co...

CVE-2026-77253: Improper Limitation of a Pathname to a Restricted Directory

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, Jira and Confluence attachment upload tools accept arbitrary local filesystem paths and send the selected bytes to Atlassian. In HTTP or multi-user deployments, a caller can cross the...

CVE-2026-54585 mport sample file handling can write outside the configured root

mport is the MidnightBSD Package Manager. Prior to 2.7.8, createsamplefile in libmport/bundlereadinstallpkg.c did not constrain absolute source and destination paths from the sample-file manifest directive to mport-root. A malicious or malformed package manifest could therefore direct privileged...

EUVD-2026-82323

mport is the MidnightBSD Package Manager. Prior to 2.7.8, createsamplefile in libmport/bundlereadinstallpkg.c did not constrain absolute source and destination paths from the sample-file manifest directive to mport-root. A malicious or malformed package manifest could therefore direct privileged...

CVE-2026-54585 mport sample file handling can write outside the configured root

mport is the MidnightBSD Package Manager. Prior to 2.7.8, createsamplefile in libmport/bundlereadinstallpkg.c did not constrain absolute source and destination paths from the sample-file manifest directive to mport-root. A malicious or malformed package manifest could therefore direct privileged...