CVE-2026-57217 RabbitMQ: Topic authorization can lead to cross-tenant routing-key bypass

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.21, 4.1.11, and 4.2.6, RabbitMQ topic authorization can allow restricted topic writes and binds during metadata-store failures because topic-permission lookup errors from Khepri can collapse to undefined, which the internal backe...

CVE-2026-57217 RabbitMQ: Topic authorization can lead to cross-tenant routing-key bypass

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.21, 4.1.11, and 4.2.6, RabbitMQ topic authorization can allow restricted topic writes and binds during metadata-store failures because topic-permission lookup errors from Khepri can collapse to undefined, which the internal backe...

EUVD-2026-43024

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.21, 4.1.11, and 4.2.6, RabbitMQ topic authorization can allow restricted topic writes and binds during metadata-store failures because topic-permission lookup errors from Khepri can collapse to undefined, which the internal backe...

Incorrect Authorization

Overview FlaskBB is an A classic Forum Software in Python using Flask. Affected versions of this package are vulnerable to Incorrect Authorization via manipulation of the topicid parameter in batch requests. An attacker can perform unauthorized actions such as locking, unlocking, deleting, or...

CVE-2026-22659

FlaskBB through 2.2.0, fixed in commit acc88cf, contains an authorization bypass vulnerability that allows authenticated moderators to perform unauthorized actions on topics in forums they do not control by submitting crafted topic ID lists. Attackers can include a low-ID topic from a permitted...

CVE-2026-22659 FlaskBB Authorization Bypass via Topic ID Manipulation

FlaskBB through 2.2.0, fixed in commit acc88cf, contains an authorization bypass vulnerability that allows authenticated moderators to perform unauthorized actions on topics in forums they do not control by submitting crafted topic ID lists. Attackers can include a low-ID topic from a permitted...

CVE-2026-22659 FlaskBB Authorization Bypass via Topic ID Manipulation

FlaskBB through 2.2.0, fixed in commit acc88cf, contains an authorization bypass vulnerability that allows authenticated moderators to perform unauthorized actions on topics in forums they do not control by submitting crafted topic ID lists. Attackers can include a low-ID topic from a permitted...

CVE-2026-22659 FlaskBB Authorization Bypass via Topic ID Manipulation

FlaskBB through 2.2.0, fixed in commit acc88cf, contains an authorization bypass vulnerability that allows authenticated moderators to perform unauthorized actions on topics in forums they do not control by submitting crafted topic ID lists. Attackers can include a low-ID topic from a permitted...

CVE-2026-22659

FlaskBB up to version 2.2.0 is vulnerable to an authorization bypass. The issue arises when an attacker manipulates a batch request with crafted topic ID lists, causing a low-ID topic from a permitted forum to be used as an anchor and bypass the permission check applied only to the first result. ...

PT-2026-57302

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.21, 4.1.11, and 4.2.6, RabbitMQ topic authorization can allow restricted topic writes and binds during metadata-store failures because topic-permission lookup errors from Khepri can collapse to undefined, which the internal backe...

CVE-2026-55424

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a topic "featured link" was not sufficiently normalized and escaped before being rendered in the topic list, allowing a user who can set a featured link to inject JavaScript when default Content...

CVE-2026-53961

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the AWS SES bounce webhook at POST /webhooks/aws verified that SNS messages were signed by Amazon but did not bind them to trusted TopicArn values, allowing any AWS account holder to publish...

CVE-2026-55424 Discourse: Topic featured link susceptible to stored XSS

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a topic "featured link" was not sufficiently normalized and escaped before being rendered in the topic list, allowing a user who can set a featured link to inject JavaScript when default Content...

CVE-2026-55424 Discourse: Topic featured link susceptible to stored XSS

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a topic "featured link" was not sufficiently normalized and escaped before being rendered in the topic list, allowing a user who can set a featured link to inject JavaScript when default Content...

CVE-2026-55424

CVE-2026-55424 – Discourse topic featured link stored XSS . Discourse (open-source discussion platform) prior to versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5 allowed a mis-normalized/undescoped topic feature link to inject JavaScript when default Content Security Policy protections were mo...

CVE-2026-53961

CVE-2026-53961 concerns Discourse, an open-source discussion platform. Prior to the fixed versions, the AWS SES bounce webhook at POST /webhooks/aws did not bind SNS-signed messages to trusted TopicArn values, enabling any AWS account holder to publish forged Bounce notifications that revoke a ta...

CVE-2026-53961 Discourse: Forged AWS SNS bounce notifications can disable a targeted user's email (missing TopicArn binding)

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the AWS SES bounce webhook at POST /webhooks/aws verified that SNS messages were signed by Amazon but did not bind them to trusted TopicArn values, allowing any AWS account holder to publish...

CVE-2026-53961

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the AWS SES bounce webhook at POST /webhooks/aws verified that SNS messages were signed by Amazon but did not bind them to trusted TopicArn values, allowing any AWS account holder to publish...

PT-2026-56998

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.6.0 Discourse versions prior to 2026.5.1 Discourse versions prior to 2026.4.2 Discourse versions prior to 2026.1.5 Description The AWS SES bounce webhook at the endpoint "POST /webhooks/aws" verifies that SNS...

CVE-2026-58214

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, an authenticated MQTT client could subscribe to the internal $MQTT.deliver.pubrel subject family, bypassing configured subscribe permissions and exposing MQTT QoS2 protoc...