GO-2026-6483 Mattermost doesn't authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret in github.com/mattermost/mattermost-server

Mattermost doesn't authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret in github.com/mattermost/mattermost-server...

GHSA-JQGV-39MG-7C2R Mattermost doesn't authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret

Mattermost versions 11.7.x = 11.7.0, 11.6.x = 11.6.2, 11.5.x = 11.5.5, 10.11.x = 10.11.17 fail to authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret and disrupt the Jira integration via POST to /ac/installed during the...

Mattermost doesn't authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret

Mattermost versions 11.7.x = 11.7.0, 11.6.x = 11.6.2, 11.5.x = 11.5.5, 10.11.x = 10.11.17 fail to authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret and disrupt the Jira integration via POST to /ac/installed during the...

CVE-2026-6673

Mattermost versions 11.7.x = 11.7.0, 11.6.x = 11.6.2, 11.5.x = 11.5.5, 10.11.x = 10.11.17 fail to authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret and disrupt the Jira integration via POST to /ac/installed during the...

EUVD-2026-38249

Mattermost versions 11.7.x = 11.7.0, 11.6.x = 11.6.2, 11.5.x = 11.5.5, 10.11.x = 10.11.17 fail to authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret and disrupt the Jira integration via POST to /ac/installed during the...

CVE-2026-6673 Mattermost Jira plugin had unauthenticated {{/ac/installed}} lifecycle callback during pending Jira Cloud install

Mattermost versions 11.7.x = 11.7.0, 11.6.x = 11.6.2, 11.5.x = 11.5.5, 10.11.x = 10.11.17 fail to authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret and disrupt the Jira integration via POST to /ac/installed during the...

PT-2026-51316

Name of the Vulnerable Software and Affected Versions Mattermost version 11.7.0 Mattermost version 11.6.2 Mattermost version 11.5.5 Mattermost version 10.11.17 Description Remote unauthenticated attackers can inject a rogue sharedSecret and disrupt the Jira integration. This occurs during the...

CVE-2026-6673: Missing Authentication for Critical Function

Mattermost versions 11.7.x = 11.7.0, 11.6.x = 11.6.2, 11.5.x = 11.5.5, 10.11.x = 10.11.17 fail to authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret and disrupt the Jira integration via POST to /ac/installed during the...

EUVD-2021-1244

Malware in sbrugna...

EUVD-2021-12896

Malware in sbrugna...

EUVD-2021-1047

Malware in sbrugna...

Atlassian Connect Spring Boot Auth Bypass

The vulnerability of the development environment for web applications built with Atlassian Connect Spring Boot is related to deficiencies in the authentication process. Exploiting this vulnerability allows a malicious actor to bypass the authentication process...

com.github.allantl:atlassian-connect-http4s_2.12 (>=0.1.0, <=0.1.2), com.github.allantl:jira4s_2.12 (0.2.0) +291 more potentially affected by CVE-2025-53864 via com.nimbusds:nimbus-jose-jwt (7.1)

com.nimbusds:nimbus-jose-jwt MAVEN version 7.1 is affected by a known vulnerability. The following packages have a transitive dependency on com.nimbusds:nimbus-jose-jwt and may be impacted: - com.github.allantl:atlassian-connect-http4s2.12 =0.1.0, =1.4, =0.29.0, =0.29.0, =0.29.0, =0.29.0, =0.29.0...

com.atlassian.connect:atlassian-connect-spring-boot-core (>=2.1.8, <=2.2.1), com.atlassian.connect:atlassian-connect-spring-boot-jwt (>=2.1.8, <=2.2.1) +131 more potentially affected by CVE-2025-53864 via com.nimbusds:nimbus-jose-jwt (8.20.2)

com.nimbusds:nimbus-jose-jwt MAVEN version 8.20.2 is affected by a known vulnerability. The following packages have a transitive dependency on com.nimbusds:nimbus-jose-jwt and may be impacted: - com.atlassian.connect:atlassian-connect-spring-boot-core =2.1.8, =2.1.8, =2.1.8, =3.4.0, =3.3.0,...

com.atlassian.connect:atlassian-connect-spring-boot-core (>=0.9.0-alpha, <=1.3.6), com.atlassian.connect:atlassian-connect-spring-boot-jwt (>=0.9.0-alpha, <=1.3.6) +3 more potentially affected by CVE-2025-53864 via com.nimbusds:nimbus-jose-jwt (3.6)

com.nimbusds:nimbus-jose-jwt MAVEN version 3.6 is affected by a known vulnerability. The following packages have a transitive dependency on com.nimbusds:nimbus-jose-jwt and may be impacted: - com.atlassian.connect:atlassian-connect-spring-boot-core =0.9.0-alpha, =0.9.0-alpha, =0.9.0-alpha,...

Broken Authentication in Atlassian Connect Express

Broken Authentication in Atlassian Connect Express ACE from version 3.0.2 before version 6.6.0: Atlassian Connect Express is a Node.js package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Express app occurs with a server-to-server JWT or...

@nexus-switchboard/nexus-conn-jira (>=0.1.0, <=0.2.2), @nexus-switchboard/nexus-mod-service (>=0.4.1, <=0.6.3) +1 more potentially affected by CVE-2021-26073 via atlassian-connect-express (>=3.5.2, <=4.4.1)

atlassian-connect-express NPM version =3.5.2, =0.1.0, =0.4.1, =0.0.1, =2.0.5 Source cves: CVE-2021-26073 Source advisory: OSV:GHSA-4V96-M8XV-X83V...

Improper Authentication in Atlassian Connect Spring Boot

Broken Authentication in Atlassian Connect Spring Boot ACSB in version 1.1.0 before 2.1.3 and from version 2.1.4 before 2.1.5: Atlassian Connect Spring Boot is a Java Spring Boot package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Sprin...

GHSA-2X7V-W2MV-F3RX Improper Authentication in Atlassian Connect Spring Boot

Broken Authentication in Atlassian Connect Spring Boot ACSB in version 1.1.0 before 2.1.3 and from version 2.1.4 before 2.1.5: Atlassian Connect Spring Boot is a Java Spring Boot package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Sprin...

FreeBSD : Gitlab -- Multiple Vulnerabilities (5f52d646-c31f-11eb-8dcf-001b217b3468)

Gitlab reports : Stealing GitLab OAuth access tokens using XSLeaks in Safari Denial of service through recursive triggered pipelines Unauthenticated CI lint API may lead to information disclosure and SSRF Server-side DoS through rendering crafted Markdown documents Issue and merge request length...