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  4. CVE 2026 123521 vikunja before 271 password brute force via totp
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Back to active CVEs
Medium · CVSS 6.0CVE-2026-123521

Vikunja before 2.7.1 Password Brute-Force via TOTP Disable EndpointCVE-2026-123521

Answer in brief

CVE-2026-123521 records a Medium severity (CVSS 6.0) vulnerability in Vikunja before 2.7.1 Password Brute-Force via TOTP Disable Endpoint. The current sources do not mark it as known exploited. The current feed maps go-vikunja/vikunja (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 8, 2026Updated Nov 8, 2026Source checked Nov 8, 2026First seen by HOL Nov 8, 2026Material review Nov 8, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.0
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 6.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps go-vikunja/vikunja (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
go-vikunja/vikunjageneric>=0 <2.7.12.7.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for go-vikunja/vikunja.
  2. 2Review the reported fix. Update go-vikunja/vikunja to 2.7.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 8, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

Vikunja before 2.7.1 contains an improper restriction of excessive authentication attempts vulnerability that allows session holders to brute-force account passwords via unthrottled re-authentication endpoints. Attackers with a stolen session can guess the password via /user/settings/totp/disable without lockout, then disable TOTP without a code for persistent account takeover.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-307
Source
CVE List V5
Source checked
Nov 8, 2026
References
2 linked sources
Open source record