CVE-2026-91970CWE-770denial-of-service

CVE-2026-91970

Medium · published September 15, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
30.6
In the wild
Unconfirmed
What it is

Vikunja versions before 2.6.0 contain a resource exhaustion vulnerability in the Planka migrator that fails to enforce aggregate memory budgets during migration jobs. Authenticated attackers can submit migration requests pointing to attacker-controlled servers advertising numerous size-compliant attachments, exhausting worker memory and causing denial of service for all users.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00378 · 30.6th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-09-15T20:17Z
References (3)
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-wq92-8x3r-fm38 · [email protected]https://www.vulncheck.com/advisories/vikunja-before-2.6.0-resource-exhaustion-via-planka-migration · [email protected]https://github.com/go-vikunja/vikunja/security/advisories/GHSA-wq92-8x3r-fm38 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 15 SEP 15:18Z
    Vikunja before 2.6.0 Resource Exhaustion via Planka Migration
    cvelistv5