FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.18.0, FileRise flattens logical folder paths into metadata filenames by replacing separators and spaces with hyphens, so distinct folders such as team/docs and team-docs can share one metadata file. Because uploader metadata is used to authorize read_own and ownership-restricted edits, a low-privileged user who controls one colliding folder, knows the target basename, and already has read_own access to the target folder can alter the metadata used by that folder, make the victim file appear attacker-owned, read it, and modify it when edit-own permission is also available. This issue is fixed in version 3.18.0.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-706"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61844.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.18.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "9ed1a38f00918849dbda30f54291d1451ed80d11"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v3.18.0",
"range": [
{
"fixed": "9de64e9f8b4b7e379ed41ed2854b9d8e609e15ff"
}
],
"source": "REFERENCES_TAG"
}
]
}