CVE-2022-36804: Atlassian Bitbucket Server and Data Center Command Injection Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 30 Sep 2022, 36 days after the CVE record was published.

How likely is exploitation in the next 30 days?

99.2%

EPSS score, percentile 99.9 of all scored records

How severe?

8.8 High

CVSS v3.1 base score, from CISA's enrichment of the record

What should I do?

CISA deadline 21 Oct 2022. Apply updates per vendor instructions.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

• 7.0.0
• before 7.6.17
• 7.7.0
• before 7.17.10
• 7.18.0
• before 7.21.4

and 18 more in the table below

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

CISA due date for this action: 21 October 2022.

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

Linked from CISA's catalog entry

• https://jira.atlassian.com/browse/BSERV-13438
• https://nvd.nist.gov/vuln/detail/CVE-2022-36804

Affected products and versions

As listed in the CVE record.

And 2 more version entries in the CVE record.

And 2 more version entries in the CVE record.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

Multiple API endpoints of Atlassian Bitbucket Server and Data Center contain a command injection vulnerability where an attacker with access to a public Bitbucket repository, or with read permissions to a private one, can execute code by sending a malicious HTTP request.

Summary: CISA's KEV catalog, as of 28 Oct 2026.

• CISA added CVE-2022-36804 to its Known Exploited Vulnerabilities (KEV) catalog on 30 Sep 2022.
• CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
• The due date CISA sets for the required action is 21 Oct 2022.
• The CVE record was published on 25 Aug 2022, 36 days before it was added to KEV.
• The CVE record carries a CVSS v3.1 base score of 8.8 (High), taken from CISA's enrichment of the record.
• FIRST's EPSS model puts the probability of exploitation in the next 30 days at 99.2% (percentile 99.9), as of 28 Oct 2026.
• CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

Description

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.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Weakness

• CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
• CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
• CWE-158

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

References

• jira.atlassian.com
• packetstormsecurity.com
• packetstormsecurity.com

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• CVE-2023-22527: Atlassian Confluence Data Center and Server Template Injection Vulnerability (added 24 Jan 2024)
• CVE-2023-22518: Atlassian Confluence Data Center and Server Improper Authorization Vulnerability (added 7 Nov 2023)
• CVE-2023-22515: Atlassian Confluence Data Center and Server Broken Access Control Vulnerability (added 5 Oct 2023)
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