QID 731002

Date Published: 2023-12-28

QID 731002: Atlassian Bitbucket Server Remote Code Execution (RCE) Vulnerability (BSERV-14528)

In Bitbucket server, SnakeYaml Constructor class does not restrict types which can be instantiated during deserialization. Deserializing yaml content provided by an attacker can lead to remote code execution (CVE-2022-43781).

Affected Versions:
Atlassian Bitbucket Server following versions: 7.17.x,7.18.x,7.19.x,7.20.x,7.21.0,7.21.1,7.21.2,7.21.3,7.21.4,7.21.5,7.21.6,7.21.7,7.21.8,7.21.9,7.21.10,7.21.11,7.21.12,7.21.13,7.21.14,7.21.15,8.0.x,8.1.x,8.2.x,8.3.x,8.4.x,8.5.x,.6.x,8.7.x,8.8.0,8.8.1,8.8.2,8.8.3,8.8.4,8.8.5,8.8.6,8.9.0,8.9.1,8.9.2,8.9.3,8.10.0,8.10.1,8.10.2,8.10.3,8.11.0,8.11.1,8.11.2,8.12.0

Detection Logic:(Unauthenticated)
QID checks for vulnerable versions of Atlassian Bitbucket Server by sending a GET request to /login endpoint.

Successful exploitation of this vulnerability allows remote code execution which may aids further attacks.

  • CVSS V3 rated as Critical - 9.8 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    The vendor has released fix for this vulnerability. Customers are advised to refer to BSERV-14528 for more information pertaining to this vulnerability, please ref: CVE-2022-1471.
    Vendor References

    CVEs related to QID 731002

    CVE-2022-1471 |
    Software Advisories
    Advisory ID Software Component Link
    BSERV-14528 URL Logo jira.atlassian.com/browse/BSERV-14528
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].
    © CVE.report 2026 |

    Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

    CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

    Free CVE JSON API cve.report/api

    CVE.report and Source URL Uptime Status status.cve.report