Vulnerability · Published Nov 8, 2026 · Assigned by VulnCheck
CVE-2026-123519Vikunja before 2.7.1 Memory Exhaustion DoS via WeKan and Vikunja-File Imports
Medium 6.5
In plain English
A medium-severity resource allocation without limits in vikunja from go-vikunja. There are no confirmed reports of exploitation so far.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)–no EPSS score yet
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Vikunja before 2.7.1 contains a denial of service vulnerability that allows authenticated users to exhaust API process memory by uploading WeKan or vikunja-file imports with no item-count cap. Attackers can submit a ~22 MB WeKan JSON with hundreds of thousands of cards or duplicate IDs to the wekan migrate endpoint, triggering OOM and crashing the instance.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| go-vikunja | vikunja | 0 – before 2.7.1 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- GitHub Security Advisory (GHSA-g2xc-jv9q-46wq) vendor-advisory
- VulnCheck Advisory: Vikunja before 2.7.1 Memory Exhaustion DoS via WeKan and Vikunja-File Imports third-party-advisory