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Fencer Vulns
medium 4.3

CVE-2024-52032 json

Private channel names leaking when Elasticsearch is enabled

published 2024-11-09 23 mo ago modified 2026-06-17 4 mo ago also BIT-mattermost-2024-52032 , EUVD-2024-45830

cvss
4.3
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 22%
public exploits
0
none known

Summary

Mattermost versions 10.0.x <= 10.0.0 and 9.11.x <= 9.11.2 fail to properly query ElasticSearch when searching for the channel name in channel switcher which allows an attacker to get private channels names of channels that they are not a member of, when Elasticsearch v8 was enabled.

Patch / fix

  • bitnami mattermost 9.11.3
  • Mattermost Mattermost 9.11.3, 10.0.1, 10.1.0

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
OSV 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
bitnami mattermost
>=9.11.0, <9.11.3
>=10.0.0-rc1, <=10.0.0-rc1
>=10.0.0-rc2, <=10.0.0-rc2
>=10.0.0-rc3, <=10.0.0-rc3
>=10.0.0-rc4, <=10.0.0-rc4
>=10.0.0, <=10.0.0
9.11.3

Affected products

  • Mattermost Mattermost

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

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.