CVE-2026-33474 json
Vikunja Affected by DoS via Image Preview Generation
published 7mo ago modified 4mo ago also EUVD-2026-20082 , GHSA-wc83-79hj-hpmq , GO-2026-4811
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 25%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go code.vikunja.io/api 2.2.0
- vikunja vikunja 2.2.0
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260326T203309-150000.1.155.2
suse advisories SUSE-SU-2026:1135-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
Is CVE-2026-33474 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7mo ago
Exploit prediction
0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com https://github.com/go-vikunja/vikunja/security/advisories/GHSA-wc83-79hj-hpmq referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | code.vikunja.io/api | >=1.0.0-rc0, <2.2.0 all versions |
2.2.0 |
Affected products
- go-vikunja vikunja
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/go-vikunja/vikunja/security/advisories/GHSA-wc83-79hj-hpmq
web, exploit, vendor-advisory, advisory
-
vikunja.io
/changelog/vikunja-v2.2.0-was-released
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-33474
advisory
-
github.com
/go-vikunja/vikunja
package
Sources
- CVE List CVE-2026-33474
- GitHub Advisory GHSA-wc83-79hj-hpmq
- NVD CVE-2026-33474
- OSV GO-2026-4811
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.