[SCIM] Get group error "Size must be between 0 and 16793600(16MB)"

[gabrielemilan]

Hello guys,

we have this issue when the group has thousands of users inside:

Groups?filter=displayName+eq+"GLOBAL-READ"

The error is:
{
"schemas": [
"urn:ietf:params:scim:api:messages:2.0:Error"
],
"status": "500",
"scimType": "internalServerError",
"detail": "Command aggregate failed: PlanExecutor error during aggregation :: caused by :: BSONObj size: 76105902 (0x48948AE) is invalid. Size must be between 0 and 16793600(16MB) First element: Representation: { _id: "876c7a69-d1be-4e05-aa65-d8406f0bda79", _t: [ "SCIMRepresentation", "SCIMRepresentationModel" ], ExternalId: null, ResourceType: "Group", Version: 6731, DisplayName: "GLOBAL-READ", RealmName: "", Created: new Date(1752069237447), LastModified: new Date(1753778133279), SchemaRefs: [ { $ref: "scimSchemas", $id: "urn:ietf:params:scim:schemas:core:2.0:Group" } ], AttributeRefs: null }."
}

This Group has around 20,000 members.

Can you please check?

Regards.
Gabriele

[simpleidserver]

Hello,

There is indeed an issue in the FindSCIMRepresentations function in the SCIMRepresentationQueryRepository class.
When a group contains a large number of attributes, the following query throws an exception. The LINQ query is translated into a MongoDB aggregate command, and the resulting data size exceeds 16 MB.

var filteredRepresentationsWithAttributes = from a in filteredRepresentations
                                            join b in _scimDbContext.SCIMRepresentationAttributeLst.AsQueryable() on a.Id equals b.RepresentationId into Attributes
                                            select new
                                            {
                                                Representation = a,
                                                Attributes = Attributes
                                            };
											

This issue should be fixed in the release/v6.0.4 branch. Could you please try again and confirm?

KR,

SID