CVE-2026-33675
published 2026-03-24CVE-2026-33675: Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the migration helper functions `DownloadFile` and…
PriorityP335medium5.4CVSS 3.1
AVNACLPRLUINSUCLINAL
EPSS
0.27%
18.9th percentile
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the migration helper functions `DownloadFile` and `DownloadFileWithHeaders` in `pkg/modules/migration/helpers.go` make arbitrary HTTP GET requests without any SSRF protection. When a user triggers a Todoist or Trello migration, file attachment URLs from the third-party API response are passed directly to these functions, allowing an attacker to force the Vikunja server to fetch internal network resources and return the response as a downloadable task attachment. Version 2.2.1 patches the issue.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| code.vikunja.io | api | >= 0 < 2.2.1 | 2.2.1 |
| go-vikunja | vikunja | < 2.2.1 | 2.2.1 |
| vikunja | vikunja | < 2.2.1 | 2.2.1 |
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OSV
Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources in code.vikunja.io/api
osv·2026-03-26
CVE-2026-33675 Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources in code.vikunja.io/api
Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources in code.vikunja.io/api
Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources in code.vikunja.io/api.
NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.
(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)
The additional affected modules and versions are: code.vikunja.io/api before v2.2.1.
OSV
Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources
osv·2026-03-25
CVE-2026-33675 [MEDIUM] Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources
Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources
## Summary
The migration helper functions `DownloadFile` and `DownloadFileWithHeaders` in `pkg/modules/migration/helpers.go` make arbitrary HTTP GET requests without any SSRF protection. When a user triggers a Todoist or Trello migration, file attachment URLs from the third-party API response are passed directly to these functions, allowing an attacker to force the Vikunja server to fetch internal network resources and return the response as a downloadable task attachment.
## Details
The vulnerability exists because the migration HTTP client uses a plain `http.Client{}` with no URL validation, no private IP blocklist, no redirect restrictions, and no response size limit.
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GHSA
Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources
ghsa·2026-03-25
CVE-2026-33675 [MEDIUM] CWE-918 Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources
Vikunja has SSRF via Todoist/Trello Migration File Attachment URLs that Allows Reading Internal Network Resources
## Summary
The migration helper functions `DownloadFile` and `DownloadFileWithHeaders` in `pkg/modules/migration/helpers.go` make arbitrary HTTP GET requests without any SSRF protection. When a user triggers a Todoist or Trello migration, file attachment URLs from the third-party API response are passed directly to these functions, allowing an attacker to force the Vikunja server to fetch internal network resources and return the response as a downloadable task attachment.
## Details
The vulnerability exists because the migration HTTP client uses a plain `http.Client{}` with no URL validation, no private IP blocklist, no redirect restrictions, and no response size limit.
*
No detection rules found.
No public exploits indexed.
2026-03-24
Published