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Atlassian Bitbucket Vulnerabilities & Security Advisories

9 advisories tracked · Atlassian ([email protected] CNA) via NVD · 2 listed in the CISA Known Exploited Vulnerabilities catalog

Every row below is a published Atlassian advisory that VulniPulse classified as Bitbucket, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 4 critical, 4 high, 1 medium.

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Source

Atlassian ([email protected] CNA) via NVD

Atlassian is its own CVE Numbering Authority. VulniPulse ingests Atlassian's CVEs from the NVD CNA feed ([email protected]), each linking to its security advisory / Jira ticket. Covers Confluence (Server & Data Center), Jira (Software & Service Management), Bitbucket, Bamboo, Crowd and Fisheye/Crucible — self-hosted Confluence/Jira are repeatedly hit by mass-exploited RCE and auth-bypass bugs (CVE-2023-22515, CVE-2022-26134), so a huge patch-now audience.

Latest Atlassian Bitbucket advisories

Critical9.3Atlassian Exploited CISA KEV Updated

Critical [CVE-2026-21589] This is a vulnerability in Bitbucket Data Center, Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center

This is a vulnerability in Bitbucket Data Center, Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center. Crowd Data Center, Crucible and Fisheye. This Arbitrary File Access vulnerability allows an unauthenticated attacker to access specific files within the web application root directory in affected versions. Exploitation requires prior knowledge of the target file's exact name and path; this vulnerability does not allow attackers to enumerate or list directory contents. In some configurations, there may be some sensitive files that make this highly severe. Affected products named by the advisory: Crucible Data Center; Fisheye Data Center.

CVE-2026-21589
ConfluenceJiraBitbucketBamboo / Crowd / Fisheye
Oct 6, 2026
Medium4.3Atlassian

Medium [CVE-2024-21684] Bitbucket: There is a low severity open redirect vulnerability within affected versions of Bitbucket Data Center.

There is a low severity open redirect vulnerability within affected versions of Bitbucket Data Center. Versions of Bitbucket DC from 8.0.0 to 8.9.12 and 8.19.0 to 8.19.1 are affected by this vulnerability. It is patched in 8.9.13 and 8.19.2. This open redirect vulnerability, with a CVSS Score of 3.1 and a CVSS Vector of CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N, allows an unauthenticated attacker to redirect a victim user upon login to Bitbucket Data Center to any arbitrary site which can be utilized for further exploitation which has low impact to confidentiality, no impact to integrity, no impact to availability, and requires user interaction. Atlassian recommends that Bitbucket Data Center customers upgrade to the version. If you are unable to do so, upgrade your instance to one of the supported fixed versions.

CVE-2024-21684
Bitbucket
Jul 25, 2024
High8.8Atlassian

High [CVE-2023-22513] Confluence: This High severity RCE (Remote Code Execution) vulnerability was introduced in version 8.0.0 of Bitbucket Data Center and Server

This High severity RCE (Remote Code Execution) vulnerability was introduced in version 8.0.0 of Bitbucket Data Center and Server. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 8.5, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires no user interaction. Atlassian recommends that Bitbucket Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions: Bitbucket Data Center and Server 8.9: Upgrade to a release greater than or equal to 8.9.5 Bitbucket Data Center and Server 8.10: Upgrade to a release greater than or equal to 8.10.5 Bitbucket Data Center and Server 8.11: Upgrade to a release greater than or equal to 8.11.4 Bitbucket Data Center and Server 8.12: Upgrade to a release greater than or equal to 8.12.2 Bitbucket Data Center and Server 8.13: Upgrade to a release greater than or equal to 8.13.1 Bitbucket Data Center and Server 8.14: Upgrade to a release greater than or equal to 8.14.0 Bitbucket Data Center and Server version >= 8.0 and < 8.9: Upgrade to any of the listed fix versions. See the release notes ( ). This vulnerability was discovered by a private user and reported via our Bug Bounty program

CVE-2023-22513
ConfluenceBitbucket
Sep 20, 2023
Critical9.8Atlassian

Critical [CVE-2022-43781] Bitbucket: There is a command injection vulnerability using environment variables in Bitbucket Server and Data Center.

There is a command injection vulnerability using environment variables in Bitbucket Server and Data Center. An attacker with permission to control their username can exploit this issue to execute arbitrary code on the system. This vulnerability can be unauthenticated if the Bitbucket Server and Data Center instance has enabled “Allow public signup”.

CVE-2022-43781
Bitbucket
Nov 17, 2022
High8.8Atlassian Exploited CISA KEV

High [CVE-2022-36804] Multiple API endpoints in Atlassian Bitbucket Server and Data Center 7.0.0 before version 7.6.17, from version 7.7.0 before…

Multiple API endpoints in Atlassian Bitbucket Server and Data Center 7.0.0 before version 7.6.17, from version 7.7.0 before version 7.17.10, from version 7.18.0 before version 7.21.4, from version 8.0.0 before version 8.0.3, from version 8.1.0 before version 8.1.3, and from version 8.2.0 before version 8.2.2, and from version 8.3.0 before 8.3.1 allows remote attackers with read permissions to a public or private Bitbucket repository to execute arbitrary code by sending a malicious HTTP request. This vulnerability was reported via our Bug Bounty Program by TheGrandPew.

CVE-2022-36804
Bitbucket
Aug 25, 2022
Critical9.8Atlassian

Critical [CVE-2022-26136] Confluence: vulnerability in multiple Atlassian products

A vulnerability in multiple Atlassian products allows a remote, unauthenticated attacker to bypass Servlet Filters used by first and third party apps. The impact depends on which filters are used by each app, and how the filters are used. This vulnerability can result in authentication bypass and cross-site scripting. Atlassian has released updates that fix the root cause of this vulnerability, but has not exhaustively enumerated all potential consequences of this vulnerability. Atlassian Bamboo versions are affected before 8.0.9, from 8.1.0 before 8.1.8, and from 8.2.0 before 8.2.4. Affected products named by the advisory: Confluence; Jira Service Management; Bitbucket; Crowd; and 2 more.

CVE-2022-26136
ConfluenceJiraBitbucketBamboo / Crowd / Fisheye
Jul 21, 2022
High8.8Atlassian

High [CVE-2022-26137] Confluence: vulnerability in multiple Atlassian products

A vulnerability in multiple Atlassian products allows a remote, unauthenticated attacker to cause additional Servlet Filters to be invoked when the application processes requests or responses. Atlassian has confirmed and fixed the only known security issue associated with this vulnerability: Cross-origin resource sharing (CORS) bypass. Sending a specially crafted HTTP request can invoke the Servlet Filter used to respond to CORS requests, resulting in a CORS bypass. An attacker that can trick a user into requesting a malicious URL can access the vulnerable application with the victim’s permissions. Atlassian Bamboo versions are affected before 8.0.9, from 8.1.0 before 8.1.8, and from 8.2.0 before 8.2.4. Affected products named by the advisory: Confluence; Jira Service Management; Bitbucket; Crowd; and 2 more.

CVE-2022-26137
ConfluenceJiraBitbucketBamboo / Crowd / Fisheye
Jul 21, 2022
Critical9.8Atlassian

Critical [CVE-2022-26133] SharedSecretClusterAuthenticator in Atlassian Bitbucket Data Center versions 5.14.0 and later before 7.6.14, 7.7.0 and later…

SharedSecretClusterAuthenticator in Atlassian Bitbucket Data Center versions 5.14.0 and later before 7.6.14, 7.7.0 and later prior to 7.17.6, 7.18.0 and later prior to 7.18.4, 7.19.0 and later prior to 7.19.4, and 7.20.0 allow a remote, unauthenticated attacker to execute arbitrary code via Java deserialization.

CVE-2022-26133
Bitbucket
Apr 21, 2022
High7.8Atlassian

High [CVE-2020-36233] The Microsoft Windows Installer for Atlassian Bitbucket Server and Data Center before version 6.10.9, 7.x before 7.6.4, and from…

The Microsoft Windows Installer for Atlassian Bitbucket Server and Data Center before version 6.10.9, 7.x before 7.6.4, and from version 7.7.0 before 7.10.1 allows local attackers to escalate privileges because of weak permissions on the installation directory.

CVE-2020-36233
Bitbucket
Feb 19, 2021

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