CVE-2026-91972

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-91972
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91972.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-91972
Aliases
  • GHSA-6rvj-qwjf-3m4q
Published
2026-09-15T15:18:22Z
Modified
2026-09-18T03:30:27Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Vikunja before 2.6.0 Authentication Bypass via Unthrottled API
Details

Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token routes. Remote unauthenticated attackers can perform unbounded credential guessing, account enumeration, and password-reset flooding attacks without throttling restrictions.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-307"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91972.json"
}
References

Affected packages

Git / github.com/go-vikunja/vikunja

Affected ranges

Type
GIT
Repo
https://github.com/go-vikunja/vikunja
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a4218eeb8fb3ada95e14a2331731524c9120d5bd
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.6.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

v0.*
v0.1
v0.10
v0.11
v0.12
v0.13
v0.14.0
v0.15.0
v0.16.0
v0.17.0
v0.18.0
v0.18.1
v0.19.0
v0.19.1
v0.19.2
v0.2
v0.20.0
v0.20.1
v0.20.3
v0.20.4
v0.21.0
v0.22.0
v0.22.1
v0.23.0
v0.24.1
v0.3
v0.4
v0.5
v0.6
v0.7
v0.8
v0.9
v1.*
v1.0.0
v1.0.0-rc0
v1.0.0-rc1
v1.0.0-rc2
v1.0.0-rc3
v1.0.0-rc4
v1.1.0
v2.*
v2.0.0
v2.1.0
v2.2.0
v2.2.1
v2.2.2
v2.3.0
v2.4.0
v2.5.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91972.json"