UBUNTU-CVE-2026-57213

RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmqfederationmanagement plugin renders the consumertag field on the Federation Status page without HTML escaping, allowing a user who can configure a federation upstream or policy to execute...

CVE-2026-57213

RabbitMQ’s rabbitmq_federation_management plugin is vulnerable to stored XSS on the Federation Status page because consumer_tag is rendered without HTML escaping. Prior to the fixed releases (3.13.14, 4.0.19, 4.1.10, 4.2.5), a user who can configure a federation upstream or policy could inject co...

CVE-2026-57213

RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmqfederationmanagement plugin renders the consumertag field on the Federation Status page without HTML escaping, allowing a user who can configure a federation upstream or policy to execute...

EUVD-2026-43014

RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmqfederationmanagement plugin renders the consumertag field on the Federation Status page without HTML escaping, allowing a user who can configure a federation upstream or policy to execute...

CVE-2026-57213 RabbitMQ: Stored XSS federation management plugin via unsanitized consumer_tag rendering

RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmqfederationmanagement plugin renders the consumertag field on the Federation Status page without HTML escaping, allowing a user who can configure a federation upstream or policy to execute...

CVE-2026-57213 RabbitMQ: Stored XSS federation management plugin via unsanitized consumer_tag rendering

RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmqfederationmanagement plugin renders the consumertag field on the Federation Status page without HTML escaping, allowing a user who can configure a federation upstream or policy to execute...

CVE-2026-57213 RabbitMQ: Stored XSS federation management plugin via unsanitized consumer_tag rendering

RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmqfederationmanagement plugin renders the consumertag field on the Federation Status page without HTML escaping, allowing a user who can configure a federation upstream or policy to execute...

CVE-2026-57213

RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmqfederationmanagement plugin renders the consumertag field on the Federation Status page without HTML escaping, allowing a user who can configure a federation upstream or policy to execute...

EUVD-2026-42952

PeerTube is an ActivityPub-federated video streaming platform. Prior to 8.2.2, server-side-rendered video watch pages embed a schema.org JSON-LD block by JSON.stringify-ing video metadata without escaping less-than, greater-than, or slash characters, allowing a value containing the byte sequence...

PT-2026-57298

Name of the Vulnerable Software and Affected Versions RabbitMQ versions prior to 3.13.14 RabbitMQ versions prior to 4.0.19 RabbitMQ versions prior to 4.1.10 RabbitMQ versions prior to 4.2.5 Description The rabbitmq federation management plugin fails to perform HTML escaping when rendering the...

CVE-2026-57213: Improper Neutralization of Input During Web Page Generation

RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmqfederationmanagement plugin renders the consumertag field on the Federation Status page without HTML escaping, allowing a user who can configure a federation upstream or policy to execute...

PYSEC-2026-1612 Synapse's invalid device keys degrade federation functionality

Impact Lack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers. Patches Patched in Synapse 1.138.3, 1.138.4,...

Synapse's invalid device keys degrade federation functionality

ImpactLack of validation for device keys in Synapse before 1.138.3 and in Synapse 1.139.0 allow an attacker registered on the victim homeserver to degrade federation functionality, unpredictably breaking outbound federation to other homeservers. PatchesPatched in Synapse 1.138.3, 1.138.4, 1.139.1...

PYSEC-2026-1614 Synapse vulnerable to federation denial of service via malformed events

Impact A malicious server can craft events with a depth outside the integer range allowed by Canonical JSON. When such an event is received by Synapse version up to 1.127.0, it prevents it from federating with other servers. The vulnerability has been exploited in the wild. Patches Fixed in Synap...

Synapse vulnerable to federation denial of service via malformed events

ImpactA malicious server can craft events with a depth outside the integer range allowed by Canonical JSON. When such an event is received by Synapse version up to 1.127.0, it prevents it from federating with other servers. The vulnerability has been exploited in the wild. PatchesFixed in Synapse...

Synapse allows a a malformed invite to break the invitee's `/sync`

ImpactSynapse versions before 1.120.1 fail to properly validate invites received over federation. This vulnerability allows a malicious server to send a specially crafted invite that disrupts the invited user's /sync functionality. PatchesSynapse 1.120.1 rejects such invalid invites received over...

PYSEC-2026-1611 Synapse allows a a malformed invite to break the invitee's `/sync`

Impact Synapse versions before 1.120.1 fail to properly validate invites received over federation. This vulnerability allows a malicious server to send a specially crafted invite that disrupts the invited user's /sync functionality. Patches Synapse 1.120.1 rejects such invalid invites received ov...

rabbitmq-server: RabbitMQ: Information Disclosure via Cross-Site Scripting in Federation Management

A flaw was found in the RabbitMQ rabbitmqfederationmanagement plugin. This cross-site scripting XSS vulnerability occurs because the consumertag field on the Federation Status page does not properly escape HTML. A user with permissions to configure a federation upstream or policy can exploit this...

rabbitmq-server: RabbitMQ: Information Disclosure via Cross-Site Scripting in Federation Management

A flaw was found in the RabbitMQ rabbitmqfederationmanagement plugin. This cross-site scripting XSS vulnerability occurs because the consumertag field on the Federation Status page does not properly escape HTML. A user with permissions to configure a federation upstream or policy can exploit this...

PYSEC-2026-821 OpenStack Horizon Cross-site Scripting (XSS)

OpenStack Horizon 9.x through 9.1.1, 10.x through 10.0.2, and 11.0.0 allows remote authenticated administrators to conduct XSS attacks via a crafted federation mapping...