MISP Event Synchronization Exposes Non-Exportable Tags on Remote Instances
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.
CVE-2026-112179
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-112179
MISP
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:2.3:a:misp:misp:*:*:*:*:*:*:*:*"
],
"repo": "https://github.com/MISP/MISP",
"vendor": "MISP",
"modules": [
"Event Synchronization"
],
"product": "MISP",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "2.5.48",
"versionType": "semver"
}
],
"programFiles": [
"app/Model/Event.php"
]
}
]- Related CVEs
- CVE-2026-112179
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #39808 · Revision 1
- Added to Heist Feed
- Publisher date