The patch shows that CLI access could differ from the web application in multiple security-sensitive areas:
- feed listings did not enforce the same lookup_visible restrictions for non-host-organisation users;
- feed detail access did not enforce the same host-organisation/site-admin authorization as FeedsController::view();
- Feed.headers, which can contain HTTP authorization credentials, could be exposed instead of being hidden or masked;
- server synchronization authkey values were not explicitly hidden from CLI detail output;
- sharing-group detail access did not consistently use SharingGroup::checkIfAuthorised();
- the use command could establish context for a record without first proving that the user was authorized to view that record
The commit additionally hardens pagination and terminal rendering, including neutralization of terminal control sequences found in database-backed values. Those are important hardening changes, but the main vulnerability is the CLI authorization/data-disclosure mismatch.
Version affected: ≤2.5.45
No advisories yet.
Solution
The fix replaces the shell's hand-rolled authorization logic with the same model-level accessors used by the web interface (Event::fetchSimpleEvent, MispAttribute::fetchAttributes, MispObject::fetchObjects, SharingGroup::checkIfAuthorised, Organisation::canSee), ensuring read and write operations enforce identical ACL rules. Credential columns are excluded at the query level via a hiddenFields mechanism so they are never fetched from the database. The inline detail editor now delegates to the entity-specific edit handlers, which enforce per-record write authorization. All terminal output passes through a sanitiser that neutralises C0/C1 control characters, ANSI escape sequences, and Unicode bidirectional overrides. Pagination is clamped to a safe range (1-1000) to prevent unbounded result sets.
Workaround
No workaround given by the vendor.
| Link | Providers |
|---|---|
| https://github.com/MISP/MISP/commit/cd9f548ed |
|
Mon, 14 Sep 2026 11:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 14 Sep 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Misp
Misp misp |
|
| Vendors & Products |
Misp
Misp misp |
Mon, 14 Sep 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Affected versions of MISP’s interactive CLI shell implement access control independently from the normal web application, causing several authorization inconsistencies. The patch shows that CLI access could differ from the web application in multiple security-sensitive areas: - feed listings did not enforce the same lookup_visible restrictions for non-host-organisation users; - feed detail access did not enforce the same host-organisation/site-admin authorization as FeedsController::view(); - Feed.headers, which can contain HTTP authorization credentials, could be exposed instead of being hidden or masked; - server synchronization authkey values were not explicitly hidden from CLI detail output; - sharing-group detail access did not consistently use SharingGroup::checkIfAuthorised(); - the use command could establish context for a record without first proving that the user was authorized to view that record The commit additionally hardens pagination and terminal rendering, including neutralization of terminal control sequences found in database-backed values. Those are important hardening changes, but the main vulnerability is the CLI authorization/data-disclosure mismatch. Version affected: ≤2.5.45 | |
| Title | MISP Interactive CLI Shell: Authorization Bypass, Credential Exposure, and Terminal Injection | |
| Weaknesses | CWE-150 CWE-200 CWE-522 CWE-862 |
|
| References |
| |
| Metrics |
cvssV4_0
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: CIRCL
Published:
Updated: 2026-09-14T10:26:12.372Z
Reserved: 2026-09-14T09:40:52.456Z
Link: CVE-2026-90895
Updated: 2026-09-14T10:25:55.129Z
Status : Received
Published: 2026-09-14T10:17:06.270
Modified: 2026-09-14T11:17:08.120
Link: CVE-2026-90895
No data.
OpenCVE Enrichment
Updated: 2026-09-14T10:30:17Z