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Fencer Vulns
medium 5.4

CVE-2026-72673 json

Incorrect Authorization in Kibana Leading to Unauthorized Deletion of Synthetics Private Locations

published 2026-08-13 2 mo ago modified 2026-09-08 2 mo ago also BIT-elk-2026-72673 , BIT-kibana-2026-72673 , EUVD-2026-58260

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits
0
none known

Summary

Incorrect Authorization (CWE-863) in Kibana can lead to unauthorized deletion of Synthetics private locations via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). Synthetics private locations can be shared with more than one space, and deleting one removes it from every space it is shared with. The safeguard that prevented the deletion of a private location still in use evaluated only the monitors visible in the requesting user's own space, so monitors that depend on the private location in other spaces were not taken into account. As a result, an authenticated Kibana user holding the Synthetics write privilege in a single space could delete a private location that other spaces still depend on, even where the user has no access to those spaces. Deleting the private location removes the shared configuration and stops the monitors in the other spaces from running, which suppresses the availability monitoring those spaces rely on.

Patch / fix

  • bitnami elk 8.19.20, 9.4.4
  • bitnami kibana 8.19.20, 9.4.4
  • elastic kibana 8.19.20, 9.4.4
  • elasticsearch kibana 8.19.20, 9.4.4

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 mo ago

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
OSV 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Affected packages

ecosystem package affected fixed in
bitnami elk
>=8.0.0, <8.19.20
>=9.0.0, <9.4.4
8.19.20
9.4.4
bitnami kibana
>=8.0.0, <8.19.20
>=9.0.0, <9.4.4
8.19.20
9.4.4

Affected products

  • Elastic Kibana

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.