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  4. CVE 2026 113599 modoboa before 280 idor via api v2 armessages
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Back to active CVEs
Medium · CVSS 5.3CVE-2026-113599

Modoboa before 2.8.0 IDOR via API v2 armessages Auto-Reply CreationCVE-2026-113599

Answer in brief

CVE-2026-113599 records a Medium severity (CVSS 5.3) vulnerability in Modoboa before 2.8.0 IDOR via API v2 armessages Auto-Reply Creation. The current sources do not mark it as known exploited. The current feed maps modoboa/modoboa (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 Oct 20, 2026Updated Oct 20, 2026Source checked Oct 20, 2026First seen by HOL Oct 20, 2026Material review Oct 20, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.3. 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 modoboa/modoboa (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
modoboa/modoboageneric>=0 <2.8.02.8.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for modoboa/modoboa.
  2. 2Review the reported fix. Update modoboa/modoboa to 2.8.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 20, 2026

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

  2. Source modified

    Oct 20, 2026

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

  3. First seen by HOL

    Oct 20, 2026

Sources and claim methodology

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

Modoboa before 2.8.0 contains an insecure direct object reference vulnerability that allows authenticated users to create auto-reply messages for arbitrary mailboxes by supplying another user's mbox value. Attackers can POST to /api/v2/armessages/ to inject attacker-controlled auto-reply subject and content into victims' settings or break their auto-reply management via MultipleObjectsReturned errors.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Stirling-PDF 3.0.0 through 3.2.0 Authorization Bypass via Processing FoldersAlso CWE-639
  • Xen Orchestra before 6.9.0 Authorization Bypass via user.set APIAlso CWE-639
  • ApostropheCMS: Same-parent page reorder in @apostrophecms/page move() re-ranks a restricted parent's children without create authorizationAlso CWE-639
  • ApostropheCMS: Missing Authorization on Notification PATCH/DELETE EndpointsAlso CWE-639
  • Cross-organization user modification and deletion via the SCIM API in Grafana EnterpriseAlso CWE-639

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-639
Source
CVE List V5
Source checked
Oct 20, 2026
References
5 linked sources
Open source record