Medium severity · published Aug 25, 2023
CVE-2023-40577
Alertmanager handles alerts sent by client applications such as the Prometheus server
5.4
CVSS
0.6%
EPSS
No
On KEV
Description
Alertmanager handles alerts sent by client applications such as the Prometheus server. An attacker with the permission to perform POST requests on the /api/v1/alerts endpoint could be able to execute arbitrary JavaScript code on the users of Prometheus Alertmanager. This issue has been fixed in Alertmanager version 0.2.51.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AL
Alertmanager · Prometheus
0.25.0 · source: NVD
DL
Debian Linux · Debian
10.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-40577
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-40577
Vendor Advisory
https://github.com/prometheus/alertmanager/security/advisories/GHSA-v86x-5fm3-5p7j
Mailing List
https://lists.debian.org/debian-lts-announce/2023/10/msg00011.html
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