CVE-2019-9943
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedIn ome.services.graphs.GraphTraversal.findObjectDetails in Open Microscopy Environment OMERO.server 5.1.0 through 5.6.0, permissions on OMERO model objects may be circumvented during certain operations such as move and delete, because group permissions are mishandled.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThe vulnerability is an authorization bypass in OMERO.server's GraphTraversal.findObjectDetails method where group permissions are mishandled, allowing authenticated users to circumvent permission checks during move and delete operations on OMERO model objects they should not have access to.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data>= 5.1.0, <= 5.6.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check OMERO.server versionRun 'omero version' or inspect the server installation directory for the version file, typically found in the OMERO.server lib directory or via 'java -jar omero-server.jar --version'Affected if The installed version is >= 5.1.0 and <= 5.6.0
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Verify GraphTraversal component is presentInspect the OMERO.server installation for the graph.jar or graphTraversal classes in the lib directory, typically under /lib/graph/ or bundled within the server jarAffected if The GraphTraversal component exists and is loaded by the server (this is typically always true for affected versions)
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Confirm multi-group user configuration existsCheck OMERO.server admin interface or database for users assigned to multiple groups: run 'omero users -l' or query the experimenter_group table for users with multiple group membershipsAffected if There are authenticated users who belong to more than one group in the system
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Check for permission configuration on sensitive groupsReview group permissions in OMERO admin interface or via 'omero chgrp' commands to identify groups with restrictive permissions on sensitive dataAffected if There exist groups with limited read/write permissions that should be protected from unauthorized access
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Test authorization bypass conditionAs a test user belonging to multiple groups, attempt to move or delete an object owned by a different group where the user lacks explicit delete permissionsAffected if The operation succeeds when it should fail, indicating the authorization bypass is present
A user is affected if they run OMERO.server version 5.1.0 through 5.6.0 with authenticated users who belong to multiple groups, and the GraphTraversal component handles permissions for move/delete operations on cross-group objects.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade OMERO.server to version 5.6.1 or later which contains the fix for proper group permission validation in the GraphTraversal component.
- Consultation4.0 h
- Implementation8.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,656.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-9943 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2019-9943 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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