Bugsink is a self-hosted error tracking tool. In 2.1.0, an authenticated file write vulnerability was identified in Bugsink 2.1.0 in the artifact bundle assembly flow. A user with a valid authentication token could cause the application to write attacker-controlled content to a filesystem location writable by the Bugsink process. This vulnerability is fixed in 2.1.1.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-20"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40162.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "2.1.0"
},
{
"fixed": "2.1.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"original_tag": "2.1.1",
"range": [
{
"fixed": "c5d04b12ceebdc22942439bddd92dc70e8cd6cd0"
}
],
"source": "REFERENCES_TAG"
}
]
}