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Back to active CVEs
Medium · CVSS 5.3CVE-2026-104914

MISP: Soft-Deleted Attributes from Other Organizations Exposed via Attribute Search and Paginated View

Answer in brief

CVE-2026-104914 records a Medium severity (CVSS 5.3) vulnerability in MISP: Soft-Deleted Attributes from Other Organizations Exposed via Attribute Search and Paginated View. The current sources do not mark it as known exploited. The current feed maps MISP/MISP (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 2, 2026Updated Oct 2, 2026Source checked Oct 2, 2026First seen by HOL Oct 2, 2026Material review Oct 2, 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 MISP/MISP (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
MISP/MISPgeneric>=0 <2.5.482.5.48

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for MISP/MISP.
  2. 2Review the reported fix. Source-reported solution: The fix enforces organizational ownership checks on soft-deleted attribute queries. When a user without sync permission requests deleted attributes, the query is now constrained to only return soft-deleted attributes whose parent event belongs to the requesting user's organization. This aligns the attribute search and paginated view behavior with the existing event view authorization logic.

Evidence timeline and material changes

  1. Published upstream

    Oct 2, 2026

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

  2. Source modified

    Oct 2, 2026

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

  3. First seen by HOL

    Oct 2, 2026

Sources and claim methodology

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

MISP contains an improper access control vulnerability in its attribute search and paginated attribute view endpoints. When a user queries for soft-deleted attributes (e.g., via the deleted-attributes search or the paginated attribute listing), the application returned soft-deleted attributes belonging to events owned by other organizations to any authenticated user who had visibility of the event. The event detail view correctly restricted soft-deleted attribute visibility to the owning organization and sync-permission users, but the attribute search and paginated view code paths lacked this restriction. Preconditions: - An authenticated MISP user with at least read access to an event owned by another organization. - The user issues a query for deleted attributes (search or paginated view with the deleted filter). Impact: - Confidentiality: Soft-deleted threat intelligence attributes (e.g., IOCs, indicators, context) from other organizations are disclosed to unauthorized users. This may expose sensitive intelligence that the owning organization intended to remove from general visibility. Affected versions: MISP versions prior to v2.5.48.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • MISP Stored XSS via Unescaped Count Field Value in Remote Event Preview IndexSame misp/misp package
  • MISP ID Translator: Unescaped Remote Event ID Enables Cross-Site Scripting via Linked ServerSame misp/misp package
  • MISP TAXII Object Viewer Stored XSS via Unescaped JSON OutputSame misp/misp package
  • MISP: JavaScript Injection via Remote Tag ID in Event Preview Inline HandlerSame misp/misp package
  • MISP Decaying Model Import Mass Assignment Allows Cross-Organization Model Overwrite and Default FlaggingSame misp/misp package
  • MISP Information Disclosure via Related Events Listing Bypassing Per-Event AuthorizationSame misp/misp package

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-862, CWE-284
Source
CVE List V5
Source checked
Oct 2, 2026
References
2 linked sources
Open source record