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TI-2022-21515 Aliases CVE-2022-43781GHSA-3883-h64p-r3xm

Command injection in Atlassian Bitbucket Data Center

Priority CRITICAL 94CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-77.

Summary

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”.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.98035 99th percentileScored 2026-11-07
Fix Fixed Bitbucket Data Center (Atlassian): before 7.0, 7.17.12, 7.21.6 +7Bitbucket Server (Atlassian): before 7.0, 7.17.12, 7.21.6 +7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AtlassianBitbucket Data Centerbefore 7.17.12; before 7.21.6; before 7.6.19; before 8.0.5; before 8.1.5; before 8.2.4; before 8.3.3; before 8.4.2; before 8.5.0before 7.0, 7.17.12, 7.21.6, 7.6.19, 8.0.5, 8.1.5, 8.2.4, 8.3.3, 8.4.2, 8.5.0Patch availableCNA
AtlassianBitbucket Serverbefore 7.17.12; before 7.21.6; before 7.6.19; before 8.0.5; before 8.1.5; before 8.2.4; before 8.3.3; before 8.4.2; before 8.5.0before 7.0, 7.17.12, 7.21.6, 7.6.19, 8.0.5, 8.1.5, 8.2.4, 8.3.3, 8.4.2, 8.5.0Patch availableCNA
  • Bitbucket Data Center VendorAtlassian Affected before 7.17.12; before 7.21.6; before 7.6.19; before 8.0.5; before 8.1.5; before 8.2.4; before 8.3.3; before 8.4.2; before 8.5.0 Fixed in before 7.0, 7.17.12, 7.21.6, 7.6.19, 8.0.5, 8.1.5, 8.2.4, 8.3.3, 8.4.2, 8.5.0 Patch available CNA
  • Bitbucket Server VendorAtlassian Affected before 7.17.12; before 7.21.6; before 7.6.19; before 8.0.5; before 8.1.5; before 8.2.4; before 8.3.3; before 8.4.2; before 8.5.0 Fixed in before 7.0, 7.17.12, 7.21.6, 7.6.19, 8.0.5, 8.1.5, 8.2.4, 8.3.3, 8.4.2, 8.5.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:atlassian:bitbucket:*:*:*:*:*:*:*:*7.0.0 to before 7.6.19; 7.7.0 to before 7.17.12; 7.18.0 to before 7.21.6; 7.22.0 to before 8.0.5; 8.1.0 to before 8.1.5; 8.2.0 to before 8.2.4; 8.3.0 to before 8.3.3; 8.4.0 to before 8.4.2VulnerableAtlassian
  • cpe:2.3:a:atlassian:bitbucket:*:*:*:*:*:*:*:* Versions 7.0.0 to before 7.6.19; 7.7.0 to before 7.17.12; 7.18.0 to before 7.21.6; 7.22.0 to before 8.0.5; 8.1.0 to before 8.1.5; 8.2.0 to before 8.2.4; 8.3.0 to before 8.3.3; 8.4.0 to before 8.4.2 Vulnerable ·Atlassian

Remediation

  • Fix · CNA Bitbucket Data Center (Atlassian) Fixed in before 7.0, 7.17.12, 7.21.6, 7.6.19, 8.0.5, 8.1.5, 8.2.4, 8.3.3, 8.4.2, 8.5.0
  • Fix · CNA Bitbucket Server (Atlassian) Fixed in before 7.0, 7.17.12, 7.21.6, 7.6.19, 8.0.5, 8.1.5, 8.2.4, 8.3.3, 8.4.2, 8.5.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-43781
  2. 2026-10-03 Alias added: GHSA-3883-h64p-r3xm

References

Patch 1

Advisory 1

  • TI-2022-17043 OS command injection in Atlassian Bitbucket Server KEVCVSS 3.1HIGH 8.8
  • TI-2022-09598 Improper authentication in Atlassian Bamboo Server CVSS 3.1CRITICAL 9.8
  • TI-2019-11186 OS command injection in Atlassian Bitbucket Server CVSS 3.1CRITICAL 9.8
  • TI-2018-03782 Link following in Atlassian Bitbucket Server CVSS 3.0CRITICAL 9.9
  • TI-2019-02555 Path traversal in Atlassian Bitbucket Data Center CVSS 3.0CRITICAL 9.1
  • TI-2022-09599 Origin validation error in Atlassian Bamboo Server CVSS 3.1HIGH 8.8
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences