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No exploitation reported

CVE-2026-123531

Vikunja 1.0.0 before 2.7.1 Pagination Limit Bypass via page=0 Parameter

No exploitation reported by the sources we read.

  • Published2026-11-08
  • WeaknessCWE-400

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Vikunja from 1.0.0 before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated users to bypass service.maxitemsperpage by sending page=0 to /api/v1 list endpoints. Attackers can self-register and repeatedly request page=0 to force unbounded SQL queries, memory materialisation, and per-row query fan-out, degrading availability for other users.

Timeline

dates in UTC
  1. 2026-11-0801:37CVE publishedCNA

Versions per branch

Products declared by the CNA

As VulnCheck, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • go-vikunja vikunjaother versions: not affected
    Affected
    • ≥ 1.0.0, < 2.7.1fixed in 2.7.1semver

    Not affected = 2.7.1

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-08

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-123531 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 4.08.72026-11-08
  • CNACVSS 3.18.82026-11-08
  • NVDCVSS 3.18.8read 2026-11-08
  • CNAweakness (CWE)CWE-4002026-11-08
  • NVDweakness (CWE)CWE-400read 2026-11-08

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-11-08
Last Modified
2026-11-08
NVD status
Deferred

Frequently asked questions

What is CVE-2026-123531?

Vikunja from 1.0.0 before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated users to bypass service.maxitemsperpage by sending page=0 to /api/v1 list endpoints. Attackers can self-register and repeatedly request page=0 to force unbounded SQL queries, memory materialisation, and per-row query fan-out, degrading availability for other users.

Is CVE-2026-123531 actively exploited?

Active exploitation of CVE-2026-123531 has not been confirmed.

What is the CVSS score for CVE-2026-123531?

CVE-2026-123531 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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