Deserialization in Atlassian Bitbucket Data Center
CVE-2022-26133
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, un…
Vulnerability class: Insecure Deserialization
EPSS: 0.711 (99.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Atlassian Bitbucket Data Center — versions 5.14.0, unspecified, 7.7.0
- Atlassian Bitbucket_data_center — versions 7.20.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@atlassian.com (x_refsource_MISC, Vendor Advisory)
- security@atlassian.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-26133?
- CVE-2022-26133 is a critical-severity vulnerability in Atlassian Bitbucket Data Center, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2022-04-20.
- How severe is CVE-2022-26133?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-26133 known to be exploited?
- 38 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.