CVE-2022-43781
There is a command injection vulnerability using environment variables in Bitbucket Server and Data Center.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 98.0%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
Description
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”.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 98.04% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-77
- Affected
- atlassian/bitbucket
- Source
- security@atlassian.com
EPSS 98.0% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://confluence.atlassian.com/x/Y4hXRgMitigation, Release Notes, Vendor Advisory
- https://jira.atlassian.com/browse/BSERV-13522Issue Tracking, Patch, Vendor Advisory
- https://confluence.atlassian.com/x/Y4hXRgMitigation, Release Notes, Vendor Advisory
- https://jira.atlassian.com/browse/BSERV-13522Issue Tracking, Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.