filelock is a platform-independent file lock for Python. From 4.0.0 until 4.2.1, SoftReadWriteLock refreshes holder records by name, allowing another local user with rename access to the lock directory to replace a record with a named pipe and stall the lock, or under a permissive hard-link policy to link a reachable target file and cause the lock user to write through it. This issue is fixed in version 4.2.1.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-62"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112934.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "4.0.0"
},
{
"fixed": "4.2.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "bfa066d65a1ba9106f86ee9d027f7588b9c77e03"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "4.2.1",
"range": [
{
"fixed": "60331bb89f325020b48bc51bde904c6446384e4a"
}
],
"source": "REFERENCES_TAG"
}
]
}