Patchfirst
CVE-2022-26133 Public exploit Critical · 9.8 EPSS 70.6%

SharedSecretClusterAuthenticator in Atlassian Bitbucket Data Center versions 5.14.0 and later before 7.6.14, 7.7.0 and…

Atlassian · Bitbucket Data Center

Summary

The SharedSecretClusterAuthenticator component in Atlassian Bitbucket Data Center contains a Java deserialization flaw, affecting 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. A remote attacker with no authentication and no user interaction can exploit the flaw over the network by sending crafted serialized data to execute arbitrary code.

Official description · CVE.org

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, unauthenticated attacker to execute arbitrary code via Java deserialization.

Breakdown
33.1 / 100
Exploited
Not confirmed
Reports
0
Tactics
0/15

Public exploit code (PoC-in-GitHub) appeared 19 days after disclosure. No confirmed exploitation is recorded.

  1. Disclosedday 0
  2. Public exploit codePoC-in-GitHub+19 days

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Not named in any threat report yet

Also mentioned in 3 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

2 links, grouped by NVD tag
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