In MISP, the event synchronization process contained a logic error in the preparation of event reports for remote push. The filtering of non-exportable tags was applied only once after the iteration over all reports, rather than to each individual report.
As a result:
- All reports except the last one in the set were pushed to the remote MISP instance with their non-exportable tags intact, effectively disclosing restricted tag information to the receiving instance.
- When the last report in the set was withheld (empty), a null report was pushed, causing the remote instance to fail saving the event.
This issue affects any MISP instance configured to push events with multiple reports to a remote server via synchronization.
Affected: <2.5.48.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://github.com/MISP/MISP/commit/0be4564a9 |
|
History
Mon, 19 Oct 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Mon, 19 Oct 2026 09:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In MISP, the event synchronization process contained a logic error in the preparation of event reports for remote push. The filtering of non-exportable tags was applied only once after the iteration over all reports, rather than to each individual report. As a result: - All reports except the last one in the set were pushed to the remote MISP instance with their non-exportable tags intact, effectively disclosing restricted tag information to the receiving instance. - When the last report in the set was withheld (empty), a null report was pushed, causing the remote instance to fail saving the event. This issue affects any MISP instance configured to push events with multiple reports to a remote server via synchronization. Affected: <2.5.48. | |
| Title | MISP Event Synchronization Exposes Non-Exportable Tags on Remote Instances | |
| First Time appeared |
Misp
Misp misp |
|
| Weaknesses | CWE-200 | |
| CPEs | cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Misp
Misp misp |
|
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: CIRCL
Published: 2026-10-19T08:53:57.689Z
Updated: 2026-10-19T18:32:29.985Z
Reserved: 2026-10-19T08:53:56.176Z
Link: CVE-2026-112179
Updated: 2026-10-19T18:32:24.715Z
Status : Deferred
Published: 2026-10-19T09:17:08.457
Modified: 2026-10-19T19:17:25.923
Link: CVE-2026-112179
No data.