CVE-2026-30844
HighSummary
Wekan, narzędzie kanban typu open source, w wersjach 8.32 i 8.33 jest podatne na atak typu Server-Side Request Forgery (SSRF) poprzez ładowanie URL-i załączników. Podczas importu tablicy, URL-e załączników z danych JSON dostarczonych przez użytkownika są pobierane bez walidacji, co umożliwia atakującym dostęp do wewnętrznych usług sieciowych.
Risk Assessment
Podatność ta pozwala uwierzytelnionym użytkownikom na wydawanie dowolnych żądań HTTP przez serwer, co może prowadzić do ujawnienia wrażliwych danych, takich jak poświadczenia IAM czy dostęp do wewnętrznych baz danych. Może to stanowić poważne zagrożenie dla bezpieczeństwa organizacji.
Recommendation
Zaleca się aktualizację Wekan do wersji 8.34, w której ta podatność została naprawiona. Dodatkowo, warto wdrożyć mechanizmy walidacji URL-i w aplikacji, aby zminimalizować ryzyko podobnych ataków w przyszłości.
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Original NVD description (English source)
Wekan is an open source kanban tool built with Meteor. Versions 8.32 and 8.33 are vulnerable to Server-Side Request Forgery (SSRF) via attachment URL loading. During board import in Wekan, attachment URLs from user-supplied JSON data are fetched directly by the server without any URL validation or filtering, affecting both the Wekan and Trello import flows. The parseActivities() and parseActions() methods extract user-controlled attachment URLs, which are then passed directly to Attachments.load() for download with no sanitization. This Server-Side Request Forgery (SSRF) vulnerability allows any authenticated user to make the server issue arbitrary HTTP requests, potentially accessing internal network services such as cloud instance metadata endpoints (exposing IAM credentials), internal databases, and admin panels that are otherwise unreachable from outside the network. This issue has been fixed in version 8.34.

