The findOrgImage method in MISP's OrgImgHelper constructs a filesystem path by concatenating a user-supplied organization identifier with a fixed image directory and a file extension, then calls file_exists() on the resulting path. The organization name field is attacker-controllable through event import, which sets Org.name. Because no validation was performed on the field value before path construction, an organization name containing directory traversal sequences (e.g., ../../etc/passwd) would cause the path to resolve outside the intended org-image directory.
This yields two security impacts:
- an arbitrary file existence oracle, since file_exists() returns a boolean for any path the process can access.
- an arbitrary file read limited to files with .png or .svg extensions, because the resolved filename is returned and subsequently rendered or served to the requesting user.
The vulnerability requires an authenticated user with the ability to create or import events that set the organization name.
Metrics
Affected Vendors & Products
References
| Link | Providers |
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| https://github.com/MISP/MISP/commit/e00986075 |
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History
Thu, 24 Sep 2026 04:30:00 +0000
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ssvc
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Tue, 22 Sep 2026 17:00:00 +0000
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Misp
Misp misp |
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Misp
Misp misp |
Tue, 22 Sep 2026 15:00:00 +0000
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| Description | The findOrgImage method in MISP's OrgImgHelper constructs a filesystem path by concatenating a user-supplied organization identifier with a fixed image directory and a file extension, then calls file_exists() on the resulting path. The organization name field is attacker-controllable through event import, which sets Org.name. Because no validation was performed on the field value before path construction, an organization name containing directory traversal sequences (e.g., ../../etc/passwd) would cause the path to resolve outside the intended org-image directory. This yields two security impacts: - an arbitrary file existence oracle, since file_exists() returns a boolean for any path the process can access. - an arbitrary file read limited to files with .png or .svg extensions, because the resolved filename is returned and subsequently rendered or served to the requesting user. The vulnerability requires an authenticated user with the ability to create or import events that set the organization name. | |
| Title | MISP Path Traversal in OrgImgHelper findOrgImage via Crafted Organization Name | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: CIRCL
Published: 2026-09-22T14:36:35.043Z
Updated: 2026-09-22T15:04:08.199Z
Reserved: 2026-09-22T14:36:33.476Z
Link: CVE-2026-95698
Updated: 2026-09-22T15:03:40.641Z
Status : Deferred
Published: 2026-09-22T15:17:27.887
Modified: 2026-09-22T16:18:23.587
Link: CVE-2026-95698
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