🛡️ CVE-2023-26431
🟡 CVSS 5.0 — Medium ✅ No Known Exploit CWE-918 NVD
5.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

IPv4-mapped IPv6 addresses did not get recognized as "local" by the code and a connection attempt is made. Attackers with access to user accounts could use this to bypass existing deny-list functionality and trigger requests to restricted network infrastructure to gain insight about topology and running services. We now respect possible IPV4-mapped IPv6 addresses when checking if contained in a deny-list. No publicly available exploits are known.

Details

Severity MEDIUM
CVSS Score 5.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
CWE CWE-918
Public Exploit ✅ No
Source NVD
Published 2023-06-20
Updated 2026-06-08
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
open-xchange-appsuite-backend — —

References

Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2023/Jun/8
Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2023/Jun/8

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