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TI-2026-69128 Aliases CVE-2026-107175GHSA-9v45-rw9g-683m

MISP correlation engine skips refresh when event sharing changes

Priority LOW 23CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

MISP versions before 2.5.48 contain a defect in the event save workflow that stops the correlation engine from recalculating correlations when an event's distribution level or sharing group changes. The internal before-save hook stores the new data instead of the previously saved values, so the after-save comparison never detects the change and stale correlations persist. An authenticated user with write access to an event can trigger this by editing its distribution or sharing group. Stale correlations may expose event data to users in a broader sharing group after the event is made more restrictive, and new relevant correlations may not appear after distribution is widened.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

MISP contains a defect in its event save workflow that prevents the correlation engine from recalculating correlations when an event's distribution level or sharing group is modified. When a user edits an existing event and changes its distribution or sharing_group_id, the internal before-save hook stored the incoming (new) data rather than the previously persisted values. As a result, the after-save comparison that determines whether a correlation refresh is needed never detected the change, and stale correlations persisted. Security impact: - Stale correlations may continue to expose event data to users in a broader sharing group after the event has been moved to a more restrictive group, resulting in unintended information disclosure. - Conversely, newly relevant correlations may not appear after a distribution widening, degrading the completeness of threat intelligence sharing. Preconditions: - An authenticated user with write access to at least one MISP event. - The user modifies the event's distribution or sharing_group_id field. Affected versions: <2.5.48

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00207 10th percentileScored 2026-11-07
Fix Fixed MISP (MISP): 2.5.48

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MISPMISPbefore 2.5.482.5.48Patch availableCNA
  • MISP VendorMISP Affected before 2.5.48 Fixed in 2.5.48 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:*——MISP
  • cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:* Versions — — ·MISP

Remediation

Upgrade MISP to version 2.5.48 or later, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA MISP (MISP) Fixed in 2.5.48

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    MISP 2.5.48

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-69130 Forced TOTP enrolment bypass via non-browser requests in MISPPriority LOW 31
    • TI-2026-69191 Race condition in MISP email OTP login allows one-time password reusePriority LOW 27
    • TI-2026-69201 MISP sync drops objects and attributes when description is emptyPriority LOW 24
    Show all 4 records →

Timeline

  1. 2026-10-07 Threatist record created from CVE-2026-107175
  2. 2026-10-07 CISA SSVC decision points changed
  3. 2026-10-07 Alias added: GHSA-9v45-rw9g-683m

References

Patch 1

  • TI-2025-41517 In MISP before 2.5.28, app/View/Elements/Workflows/executionPath.ctp allows XSS in the workflow execution path. CVSS 3.1CRITICAL 9.0
  • TI-2026-65744 MISP TOTP Code Replay Allows Duplicate Authentication Within Validity Period CVSS 4.0CRITICAL 9.3
  • TI-2026-54145 Path Traversal in MISP Object Template Resolution During STIX Import and Export in misp-stix library CVSS 4.0HIGH 8.8
  • TI-2020-10250 MISP MISP-maltego 1.4.4 incorrectly shares a MISP connection across users in a remote-transform use case. CVSS 3.1CRITICAL 9.8
  • TI-2026-59159 MISP Unauthenticated Mail Endpoints Allow Unbounded Storage Consumption and Request Flooding CVSS 4.0HIGH 8.7
  • TI-2026-58541 MISP LDAP and LinOTP Authentication Bypass via Empty or Invalid Credentials CVSS 4.0CRITICAL 9.5
See all 182 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences