CVE-2023-26431

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.

• CWE-918
• CWE-918

• http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.htmlThird Party Advisory, VDB Entry
• http://seclists.org/fulldisclosure/2023/Jun/8Mailing List, Third Party Advisory
• https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json
• https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdfRelease Notes
• http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.htmlThird Party Advisory, VDB Entry
• http://seclists.org/fulldisclosure/2023/Jun/8Mailing List, Third Party Advisory
• https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json
• https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdfRelease Notes

Published

Jun 20, 2023

Last Modified

Jun 17, 2026

Status

Modified

• One Click Account Takeover in GranolaHow a notification link broke out of Electron and led to a one-click account takeover.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2023-26426Illustrator version 26.5.2 (and earlier) and 27.2.0 (and ear…7.8
• CVE-2023-26427Default permissions for a properties file were too permissiv…3.3
• CVE-2023-26428Attackers can successfully request arbitrary snippet IDs, in…6.5
• CVE-2023-26429Control characters were not removed when exporting user feed…5.3
• CVE-2023-2643A vulnerability classified as critical was found in SourceCo…9.8
• CVE-2023-26430Attackers with access to user accounts can inject arbitrary …4.3
• CVE-2023-26432When adding an external mail account, processing of SMTP "ca…4.3
• CVE-2023-26433When adding an external mail account, processing of IMAP "ca…4.3
• CVE-2023-26434When adding an external mail account, processing of POP3 "ca…4.3
• CVE-2023-26435It was possible to call filesystem and network references us…5
• CVE-2023-26436Attackers with access to the "documentconverterws" API were …8.8
• CVE-2023-26437Denial of service vulnerability in PowerDNS Recursor allows …5.3