CVE-2026-33474
published 2026-03-24CVE-2026-33474: Vikunja is an open-source self-hosted task management platform. Starting in version 1.0.0-rc0 and prior to version 2.2.0, unbounded image decoding and resizing…
PriorityP335medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.32%
23.5th percentile
Vikunja is an open-source self-hosted task management platform. Starting in version 1.0.0-rc0 and prior to version 2.2.0, unbounded image decoding and resizing during preview generation lets an attacker exhaust CPU and memory with highly compressed but extremely large-dimension images. Version 2.2.0 patches the issue.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| code.vikunja.io | api | >= 1.0.0-rc0 < 2.2.0 | 2.2.0 |
| go-vikunja | vikunja | — | — |
| vikunja | vikunja | >= 1.0.0 < 2.2.0 | 2.2.0 |
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OSV
Vikunja Affected by DoS via Image Preview Generation in code.vikunja.io/api
osv·2026-03-23
CVE-2026-33474 Vikunja Affected by DoS via Image Preview Generation in code.vikunja.io/api
Vikunja Affected by DoS via Image Preview Generation in code.vikunja.io/api
Vikunja Affected by DoS via Image Preview Generation 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 from v1.0.0-rc0 before v2.2.0.
OSV
Vikunja Affected by DoS via Image Preview Generation
osv·2026-03-20
CVE-2026-33474 [MEDIUM] Vikunja Affected by DoS via Image Preview Generation
Vikunja Affected by DoS via Image Preview Generation
## Summary
- Vulnerability: Unbounded image decoding and resizing during preview generation lets an attacker exhaust CPU and memory with highly compressed but extremely large-dimension images.
- Affected code:
- Decoding without bounds: [task_attachment.go:GetPreview](../../tree/main/pkg/models/task_attachment.go#L219-L229)
- Resizing path: [resizeImage](../../tree/main/pkg/models/task_attachment.go#L293-L304)
- Endpoint invoking preview: [GetTaskAttachment](../../tree/main/pkg/routes/api/v1/task_attachment.go#L195-L203)
- Impact: First preview generation per attachment can allocate large memory and spend significant CPU; multiple attachments or concurrent requests can degrade or crash the service.
- CVSS v3.1: 7.5 (AV:N/AC:L/PR:L/UI:N/
GHSA
Vikunja Affected by DoS via Image Preview Generation
ghsa·2026-03-20
CVE-2026-33474 [MEDIUM] CWE-400 Vikunja Affected by DoS via Image Preview Generation
Vikunja Affected by DoS via Image Preview Generation
## Summary
- Vulnerability: Unbounded image decoding and resizing during preview generation lets an attacker exhaust CPU and memory with highly compressed but extremely large-dimension images.
- Affected code:
- Decoding without bounds: [task_attachment.go:GetPreview](../../tree/main/pkg/models/task_attachment.go#L219-L229)
- Resizing path: [resizeImage](../../tree/main/pkg/models/task_attachment.go#L293-L304)
- Endpoint invoking preview: [GetTaskAttachment](../../tree/main/pkg/routes/api/v1/task_attachment.go#L195-L203)
- Impact: First preview generation per attachment can allocate large memory and spend significant CPU; multiple attachments or concurrent requests can degrade or crash the service.
- CVSS v3.1: 7.5 (AV:N/AC:L/PR:L/UI:N/
No detection rules found.
No public exploits indexed.
2026-03-24
Published