CVE-2026-6850

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4, 10.11.x = 10.11.19 fail to validate the length and content of message attachment field values, which allows an authenticated attacker to cause a denial of service for all users in a channel via a post containing a specially crafted payload tha...

CVE-2026-6850 Crafted message attachment causes client-side denial of service via markdown parser regex backtracking in Mattermost

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4, 10.11.x = 10.11.19 fail to validate the length and content of message attachment field values, which allows an authenticated attacker to cause a denial of service for all users in a channel via a post containing a specially crafted payload tha...

CVE-2026-6850 Crafted message attachment causes client-side denial of service via markdown parser regex backtracking in Mattermost

Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4, 10.11.x = 10.11.19 fail to validate the length and content of message attachment field values, which allows an authenticated attacker to cause a denial of service for all users in a channel via a post containing a specially crafted payload tha...

CVE-2026-6850

Mattermost is affected (versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4, 10.11.x

CVE-2026-62143

The CVE-2026-62143 issue affects the html_to_markdown expansion module of misp-modules. An SSRF protection bypass occurred because IPv4-mapped IPv6 addresses were not normalised before checking blocked IP ranges, allowing an authenticated attacker to supply addresses like http://[::ffff:127.0.0.1...

CVE-2026-62143 Server-Side Request Forgery protection bypass in misp-modules html_to_markdown via IPv4-mapped IPv6 addresses

A Server-Side Request Forgery SSRF protection bypass existed in the htmltomarkdown expansion module of misp-modules. The module attempts to prevent requests to loopback, private, link-local, and other restricted IP address ranges. However, IP addresses were compared against the blocked ranges...

linkify-it: linkify-it: Denial of Service via algorithmic complexity vulnerability

A flaw was found in linkify-it, a library for recognizing links with full Unicode support. The LinkifyIt.prototype.match function, the package's primary public API, has an algorithmic complexity of ON² for inputs containing many fuzzy links or emails. This can be exploited by a remote attacker...

CVE-2026-58499

EverOS is a memory runtime for agents. Prior to 1.0.1, EverOS is vulnerable to path traversal in the POST /api/v1/memory/add ingestion endpoint because the per-message senderid field was not validated as a path-safe identifier, unlike appid and projectid. During user-memory extraction, senderid i...

CVE-2026-58499

EverOS is affected by a path-traversal vulnerability in the POST /api/v1/memory/add ingestion endpoint prior to version 1.0.1. The per-message sender_id was not validated as a path-safe identifier, unlike app_id/project_id, and is used as owner_id to build the filesystem path for persisting extra...

Cross-site Scripting (XSS)

Overview snipe/snipe-it is an asset management system built on Laravel. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the markdown-textarea custom field processing. An attacker can execute arbitrary JavaScript in the context of another user by embedding a crafte...

CVE-2026-55464

Snipe-IT is an IT asset/license management system. Prior to 8.6.2, CommonMark escapes raw HTML but does not sanitize javascript: URIs in Markdown hyperlinks, allowing a user with assets.edit permission to place a malicious link in a markdown-textarea custom field that executes arbitrary JavaScrip...

CVE-2026-55464

Snipe-IT (IT asset/license management) is affected by CVE-2026-55464 prior to version 8.6.2. The issue arises from CommonMark escaping raw HTML but not sanitizing javascript: URIs in Markdown hyperlinks within a markdown-textarea custom field. A user with assets.edit permission can insert a malic...

CVE-2026-55464 Snipe-IT: Stored XSS via Markdown custom field

Snipe-IT is an IT asset/license management system. Prior to 8.6.2, CommonMark escapes raw HTML but does not sanitize javascript: URIs in Markdown hyperlinks, allowing a user with assets.edit permission to place a malicious link in a markdown-textarea custom field that executes arbitrary JavaScrip...

CVE-2026-55464 Snipe-IT: Stored XSS via Markdown custom field

Snipe-IT is an IT asset/license management system. Prior to 8.6.2, CommonMark escapes raw HTML but does not sanitize javascript: URIs in Markdown hyperlinks, allowing a user with assets.edit permission to place a malicious link in a markdown-textarea custom field that executes arbitrary JavaScrip...

CVE-2026-55464 Snipe-IT: Stored XSS via Markdown custom field

Snipe-IT is an IT asset/license management system. Prior to 8.6.2, CommonMark escapes raw HTML but does not sanitize javascript: URIs in Markdown hyperlinks, allowing a user with assets.edit permission to place a malicious link in a markdown-textarea custom field that executes arbitrary JavaScrip...

CVE-2026-55890

Grav is a file-based Web platform. Prior to 2.0.0-rc.9, Grav's incomplete fix for stored XSS through the Markdown media attribute action CVE-2026-42841 leaves the sibling MediaObjectTrait::style method reachable through the same Markdown excerpt-action pipeline, allowing an editor to save Markdow...

EUVD-2026-42946

Grav is a file-based Web platform. Prior to 2.0.0-rc.9, Grav's incomplete fix for stored XSS through the Markdown media attribute action CVE-2026-42841 leaves the sibling MediaObjectTrait::style method reachable through the same Markdown excerpt-action pipeline, allowing an editor to save Markdow...

CVE-2026-55890 Grav: Stored CSS injection via Markdown image ?style=… reaches MediaObjectTrait::style()

Grav is a file-based Web platform. Prior to 2.0.0-rc.9, Grav's incomplete fix for stored XSS through the Markdown media attribute action CVE-2026-42841 leaves the sibling MediaObjectTrait::style method reachable through the same Markdown excerpt-action pipeline, allowing an editor to save Markdow...

CVE-2026-55890 Grav: Stored CSS injection via Markdown image ?style=… reaches MediaObjectTrait::style()

Grav is a file-based Web platform. Prior to 2.0.0-rc.9, Grav's incomplete fix for stored XSS through the Markdown media attribute action CVE-2026-42841 leaves the sibling MediaObjectTrait::style method reachable through the same Markdown excerpt-action pipeline, allowing an editor to save Markdow...

CVE-2026-55890

Grav CVE-2026-55890 concerns stored CSS injection via Markdown image style parameters that reach MediaObjectTrait::style(). The incomplete patch from GHSA-r7fx-8g49-7hhr fixed attribute() (denying dangerous attribute names) but leaves the sibling style() sink unmitigated, allowing editor-supplied...