Medium
SiYuan before v3.8.1 Path Traversal via asset.upload
Type: advisorySources: OSV
SiYuan before v3.8.1 contains a path traversal vulnerability in the asset.upload MCP tool that accepts arbitrary absolute file paths without workspace boundary validation. Attackers can induce the AI Agent to upload sensitive files such as SSH keys or credentials from outside the workspace into the asset directory through prompt injection.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-82233
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 23:47 UTC · Revision 1
Source evidence
SiYuan before v3.8.1 Path Traversal via asset.upload
core-osv · Original sourcePublished 28 Aug 2026, 10:49 UTC
SiYuan before v3.8.1 contains a path traversal vulnerability in the asset.upload MCP tool that accepts arbitrary absolute file paths without workspace boundary validation. Attackers can induce the AI Agent to upload sensitive files such as SSH keys or credentials from outside the workspace into the asset directory through prompt injection.
osv:CVE-2026-82233
Complete source record
{
"id": "b962b50abb8864fbd07e635c4e1c33bd1f07e6ce15b783b1581b54b71dd058a4",
"url": "https://osv.dev/vulnerability/CVE-2026-82233",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "SiYuan before v3.8.1 Path Traversal via asset.upload",
"summary": "SiYuan before v3.8.1 contains a path traversal vulnerability in the asset.upload MCP tool that accepts arbitrary absolute file paths without workspace boundary validation. Attackers can induce the AI Agent to upload sensitive files such as SSH keys or credentials from outside the workspace into the asset directory through prompt injection.",
"evidence": "osv:CVE-2026-82233",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-82233",
"aliases": [
"CVE-2026-82233",
"GHSA-p23f-cm6q-2qp8",
"GO-2026-6655"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/siyuan-note/siyuan",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "afa823b6b4e4f183511e0bc0a3be93caa94c7c97"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.8.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.8.1"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
"versions": [
"v3.8.1-beta.6",
"v3.8.1-beta.5",
"v3.8.1-beta.4",
"v3.8.1-beta.1",
"v3.8.0",
"v3.8.0-beta.2",
"v3.8.0-alpha.4",
"v3.8.0-alpha.3",
"v3.8.0-alpha.2",
"v3.7.4-alpha.4",
"v3.7.4-alpha.2",
"v3.7.3",
"v3.7.3-beta.2",
"v3.7.3-beta.1",
"v3.7.0-rc.2",
"v3.7.0-rc.1",
"v3.6.5",
"v3.7.0-dev12",
"v3.7.0-dev8",
"v3.7.0-dev5",
"v3.7.0-dev2",
"v3.6.5-dev2",
"v3.6.4",
"v3.6.4-dev2",
"v3.6.3",
"v3.6.2",
"v3.6.1",
"v3.6.0",
"v3.5.10",
"v3.5.9",
"v3.5.8",
"v3.5.8-dev2",
"v3.5.7",
"v3.5.5",
"v3.5.4",
"v3.5.4-dev5",
"v3.5.4-dev3",
"v3.5.4-dev2",
"v3.5.4-dev1",
"v3.5.3",
"v3.5.3-dev5",
"v3.5.3-dev4",
"v3.5.3-dev3",
"v3.5.3-dev2",
"v3.5.2",
"v3.5.2-dev2",
"v3.5.2-dev1",
"v3.5.1",
"v3.5.1-dev2",
"v3.5.1-dev1",
"v3.5.0",
"v3.5.0-dev2",
"v3.5.0-dev1",
"v3.4.2",
"v3.4.2-dev1",
"v3.4.1",
"v3.4.1-dev1",
"v3.4.0",
"v3.4.0-dev5",
"v3.4.0-dev4",
"v3.4.0-dev3",
"v3.4.0-dev2",
"v3.4.0-dev1",
"v3.3.6",
"v3.3.6-dev2",
"v3.3.6-dev1",
"v3.3.5",
"v3.3.4",
"v3.3.4-dev2",
"v3.3.4-dev1",
"v3.3.3",
"v3.3.3-dev5",
"v3.3.3-dev4",
"v3.3.3-dev3",
"v3.3.3-dev2",
"v3.3.3-dev1",
"v3.3.2",
"v3.3.2-dev2",
"v3.3.2-dev1",
"v3.3.1",
"v3.3.0",
"v3.3.0-dev4",
"v3.3.0-dev3",
"v3.2.1",
"v3.2.1-dev6",
"v3.2.1-dev5",
"v3.2.1-dev4",
"v3.2.1-dev3",
"v3.2.1-dev2",
"v3.2.0-dev10",
"v3.2.0-dev9",
"v3.2.0-dev8",
"v3.2.0-dev6",
"v3.2.0-dev4",
"v3.2.0-dev3",
"v3.2.0-dev2",
"v3.2.0-dev1",
"v3.1.32",
"v3.1.32-dev2",
"v3.1.31",
"v3.1.30",
"v3.1.30-dev1",
"v3.1.29",
"v3.1.29-dev3",
"v3.1.28",
"v3.1.28-dev3",
"v3.1.28-dev2",
"v3.1.27",
"v3.1.27-dev4",
"v3.1.27-dev2",
"v3.1.27-dev1",
"v3.1.26",
"v3.1.26-dev3",
"v3.1.26-dev2",
"v3.1.26-dev1",
"v3.1.25",
"v3.1.25-dev6",
"v3.1.25-dev4",
"v3.1.25-dev3",
"v3.1.24",
"v3.1.23",
"v3.1.22",
"v3.1.22-dev2",
"v3.1.22-dev1",
"v3.1.21",
"v3.1.21-dev4",
"v3.1.21-dev3",
"v3.1.21-dev1",
"v3.1.20",
"v3.1.20-dev4",
"v3.1.20-dev3",
"v3.1.19",
"v3.1.19-dev3",
"v3.1.18",
"v3.1.17",
"v3.1.16",
"v3.1.15",
"v3.1.15-dev3",
"v3.1.15-dev1",
"v3.1.14",
"v3.1.14-dev2",
"v3.1.13",
"v3.1.12",
"v3.1.12-dev4",
"v3.1.12-dev3",
"v3.1.12-dev2",
"v3.1.11",
"v3.1.11-dev9",
"v3.1.11-dev5",
"v3.1.11-dev2",
"v3.1.10",
"v3.1.10-dev6",
"v3.1.10-dev1",
"v3.1.9",
"v3.1.9-dev10",
"v3.1.9-dev9",
"v3.1.9-dev7",
"v3.1.9-dev6",
"v3.1.9-dev4",
"v3.1.9-dev3",
"v3.1.9-dev2",
"v3.1.9-dev1",
"v3.1.8",
"v3.1.8-dev3",
"v3.1.8-dev2",
"v3.1.7",
"v3.1.7-dev8",
"v3.1.7-dev7",
"v3.1.7-dev5",
"v3.1.7-dev4",
"v3.1.7-dev3",
"v3.1.6",
"v3.1.6-dev2",
"v3.1.6-dev1",
"v3.1.5",
"v3.1.4",
"v3.1.4-dev5",
"v3.1.4-dev3",
"v3.1.4-dev2",
"v3.1.3",
"v3.1.3-dev2",
"v3.1.3-dev1",
"v3.1.2",
"v3.1.2-dev4",
"v3.1.2-dev3",
"v3.1.2-dev2",
"v3.1.1-dev2",
"v3.1.1-dev1",
"v3.1.0",
"v3.1.0-dev12",
"v3.1.0-dev11",
"v3.1.0-dev10",
"v3.1.0-dev9",
"v3.1.0-dev8",
"v3.1.0-dev3",
"v3.1.0-dev2",
"v3.0.17",
"v3.0.17-dev2",
"v3.0.17-dev1",
"v3.0.16",
"v3.0.16-dev3",
"v3.0.15",
"v3.0.15-dev2",
"v3.0.15-dev1",
"v3.0.14",
"v3.0.13-dev4",
"v3.0.13-dev3",
"v3.0.12",
"v3.0.12-dev5",
"v3.0.12-dev4",
"v3.0.12-dev1",
"v3.0.11",
"v3.0.10",
"v3.0.10-dev3",
"v3.0.10-dev1",
"v3.0.9",
"v3.0.8",
"v3.0.8-dev2",
"v3.0.8-dev1",
"v3.0.7",
"v3.0.7-dev1",
"v3.0.6",
"v3.0.6-dev3",
"v3.0.6-dev2",
"v3.0.5",
"v3.0.5-dev5",
"v3.0.5-dev4",
"v3.0.5-dev3",
"v3.0.4",
"v3.0.4-dev2",
"v3.0.3",
"v3.0.3-dev5",
"v3.0.3-dev4",
"v3.0.2",
"v3.0.2-dev2",
"v3.0.1",
"v3.0.1-dev2",
"v3.0.0",
"v3.0.0-dev2",
"v3.0.0-dev1",
"v2.12.8",
"v2.12.8-dev2",
"v2.12.7",
"v2.12.7-dev2",
"v2.12.7-dev1",
"v2.12.6",
"v2.12.5",
"v2.12.4",
"v2.12.4-dev2",
"v2.12.3",
"v2.12.3-dev2",
"v2.12.2",
"v2.12.1",
"v2.12.1-dev3",
"v2.12.0",
"v2.12.0-dev1",
"v2.11.4",
"v2.11.4-dev6",
"v2.11.4-dev5",
"v2.11.4-dev4",
"v2.11.4-dev2",
"v2.11.3",
"v2.11.3-dev2",
"v2.11.3-dev1",
"v2.11.2",
"v2.11.2-dev5",
"v2.11.2-dev4",
"v2.11.2-dev3",
"v2.11.2-dev2",
"v2.11.2-dev1",
"v2.11.1",
"v2.11.1-dev1",
"v2.11.0",
"v2.11.0-dev2",
"v2.10.16",
"v2.10.16-dev2",
"v2.10.15",
"v2.10.15-dev1",
"v2.10.14",
"v2.10.14-dev2",
"v2.10.14-dev1",
"v2.10.13",
"v2.10.13-dev5",
"v2.10.13-dev1",
"v2.10.12",
"v2.10.12-dev1",
"v2.10.11",
"v2.10.11-dev2",
"v2.10.10",
"v2.10.9",
"v2.10.9-dev3",
"v2.10.8",
"v2.10.8-dev3",
"v2.10.8-dev2",
"v2.10.8-dev1",
"v2.10.6",
"v2.10.6-dev4",
"v2.10.6-dev3",
"v2.10.6-dev2",
"v2.10.6-dev1",
"v2.10.5",
"v2.10.5-dev2",
"v2.10.5-dev1",
"v2.10.4",
"v2.10.4-dev1",
"v2.10.3",
"v2.10.3-dev3",
"v2.10.3-dev2",
"v2.10.3-dev1",
"v2.10.2",
"v2.10.1",
"v2.10.1-dev1",
"v2.10.0",
"v2.9.9",
"v2.9.9-dev1",
"v2.9.8",
"v2.9.8-dev2",
"v2.9.8-dev1",
"v2.9.7",
"v2.9.7-dev3",
"v2.9.7-dev2",
"v2.9.6",
"v2.9.6-dev1",
"v2.9.5",
"v2.9.5-dev2",
"v2.9.4",
"v2.9.4-dev2",
"v2.9.3",
"v2.9.3-dev3",
"v2.9.3-dev1",
"v2.9.2",
"v2.9.2-dev3",
"v2.9.2-dev2",
"v2.9.1",
"v2.9.1-dev2",
"v2.9.1-dev1",
"v2.9.0",
"v2.9.0-dev1",
"v2.8.10",
"v2.8.9",
"v2.8.9-dev3",
"v2.8.9-dev2",
"v2.8.8",
"v2.8.8-dev3",
"v2.8.8-dev1",
"v2.8.7",
"v2.8.7-dev5",
"v2.8.7-dev3",
"v2.8.7-dev2",
"v2.8.6",
"v2.8.6-dev4",
"v2.8.6-dev2",
"v2.8.6-dev1",
"v2.8.5",
"v2.8.5-dev3",
"v2.8.5-dev2",
"v2.8.5-dev1",
"v2.8.4",
"v2.8.4-dev2",
"v2.8.3",
"v2.8.3-dev1",
"v2.8.1-dev3",
"v2.8.1-dev2",
"v2.8.1-dev1",
"v2.8.0",
"v2.8.0-dev1",
"v2.7.10",
"v2.7.9-dev2",
"v2.7.9-dev1",
"v2.7.9",
"v2.7.8",
"v2.7.8-dev1",
"v2.7.7",
"v2.7.7-dev4",
"v2.7.7-dev3",
"v2.7.7-dev2",
"v2.7.7-dev1",
"v2.7.6",
"v2.7.6-dev4",
"v2.7.6-dev3",
"v2.7.5",
"v2.7.5-dev2",
"v2.7.4",
"v2.7.4-dev1",
"v2.7.3",
"v2.7.3-dev4",
"v2.7.3-dev3",
"v2.7.2",
"v2.7.2-dev3",
"v2.7.2-dev2",
"v2.7.2-dev1",
"v2.7.1",
"v2.7.1-dev5",
"v2.7.1-dev1",
"v2.7.0",
"v2.6.3",
"v2.6.3-dev6",
"v2.6.3-dev4",
"v2.6.3-dev3",
"v2.6.3-dev2",
"v2.6.3-dev1",
"v2.6.2",
"v2.6.1",
"v2.6.1-dev7",
"v2.6.1-dev6",
"v2.6.1-dev5",
"v2.6.1-dev4",
"v2.6.1-dev3",
"v2.6.0",
"v2.6.0-dev3",
"v2.6.0-dev2",
"v2.6.0-dev1",
"v2.5.5",
"v2.5.5-dev1",
"v2.5.4",
"v2.5.4-dev1",
"v2.5.3",
"v2.5.3-dev2",
"v2.5.2",
"v2.5.2-dev2",
"v2.5.1",
"v2.5.1-dev2",
"v2.5.1-dev1",
"v2.5.0",
"v2.5.0-dev2",
"v2.5.0-dev1",
"v2.4.12",
"v2.4.12-dev2",
"v2.4.11",
"v2.4.10",
"v2.4.9",
"v2.4.8",
"v2.4.7",
"v2.4.6",
"v2.4.5",
"v2.4.4",
"v2.4.3",
"v2.4.2",
"v2.4.1",
"v2.4.0",
"v2.3.3",
"v2.3.2",
"v2.3.1",
"v2.3.0",
"v2.2.3",
"v2.2.2",
"v2.2.1",
"v2.2.0",
"v2.1.14",
"v2.1.13",
"v2.1.12",
"v2.1.11",
"v2.1.10",
"v2.1.9",
"v2.1.8",
"v2.1.8-dev1",
"v2.1.7",
"v2.1.6",
"v2.1.6-dev1",
"v2.1.5",
"v2.1.4",
"v2.1.3",
"v2.1.3-dev1",
"v2.1.2",
"v2.1.1",
"v2.1.0",
"v2.0.27",
"v2.0.26",
"v2.0.26-dev2",
"v2.0.26-dev1",
"v2.0.25",
"v2.0.24",
"v2.0.23",
"v2.0.22",
"v2.0.21",
"v2.0.21-dev1",
"v2.0.20",
"v2.0.19",
"v2.0.18",
"v2.0.17",
"dev2.0.17-2",
"v2.0.16",
"v2.0.15",
"v2.0.14",
"v2.0.13",
"v2.0.12",
"v2.0.11",
"v2.0.10",
"v2.0.9",
"v2.0.8",
"v2.0.7",
"v2.0.6",
"v2.0.5",
"v2.0.4",
"v2.0.3",
"v2.0.2",
"v2.0.1",
"v2.0.0",
"v2.0.0-beta2",
"v2.0.0-beta1",
"v1.9.9",
"v1.9.8",
"v1.9.7",
"v1.9.6",
"v1.9.5",
"v1.9.4",
"v1.9.3",
"v1.9.2",
"v1.9.1",
"v1.9.0",
"v1.8.9",
"v1.8.8",
"v1.8.7",
"v1.8.6",
"v1.8.5",
"v1.8.4",
"v1.8.2",
"v1.8.1",
"v1.8.0",
"v1.7.11",
"v1.7.10",
"v1.7.9",
"v1.7.8",
"v1.7.7",
"v1.7.6",
"v1.7.5",
"v1.7.4",
"v1.7.3",
"v1.7.2",
"v1.7.1",
"v1.7.0",
"v1.6.3",
"v1.6.2",
"v1.6.1",
"v1.6.0",
"v1.5.6",
"v1.5.5",
"v1.5.5-beta3",
"v1.5.5-beta2",
"v1.5.5-beta1",
"v1.5.4",
"v1.5.3",
"v1.5.2",
"v1.5.1",
"v1.5.0",
"v1.4.8",
"v1.4.7",
"v1.4.6",
"v1.4.5",
"v1.4.4",
"v1.4.3",
"v1.4.2",
"v1.4.1",
"v1.4.0",
"v1.3.9",
"v1.3.8",
"v1.3.7",
"v1.3.6",
"v1.3.5",
"v1.3.4",
"v1.3.3",
"v1.3.2",
"v1.3.1",
"v1.3.0",
"v1.2.9",
"v1.2.8",
"v1.2.7",
"v1.2.6",
"v1.2.5",
"v1.2.31",
"v1.2.3",
"v1.2.2",
"v1.2.1",
"v1.2.0",
"v1.2.0-rc3",
"v1.2.0-rc2",
"v1.2.0-rc1",
"v1.2.0-beta16",
"v1.2.0-beta15",
"v1.2.0-beta14",
"v1.2.0-beta13",
"v1.2.0-beta12",
"v1.2.0-beta11",
"v1.2.0-beta10",
"v1.2.0-beta9",
"v1.2.0-beta8",
"v1.2.0-beta7",
"v1.2.0-beta6",
"v1.2.0-beta5",
"v1.2.0-beta4",
"v1.2.0-beta3",
"v1.2.0-beta2",
"v1.2.0-beta1",
"v1.1.83",
"v1.1.82",
"v1.1.81",
"v1.1.8",
"v1.1.7",
"v1.1.6",
"v1.1.5",
"v1.1.4",
"v1.1.3",
"v1.1.2",
"v1.1.1",
"v1.1.0",
"v1.0.9",
"v1.0.8",
"v1.0.7",
"v1.0.6",
"v1.0.5",
"v1.0.4",
"v1.0.3",
"v1.0.2",
"v1.0.1",
"v1.0.0",
"v0.9.9",
"v0.9.8",
"v0.9.7",
"v0.9.6",
"v0.9.5",
"v0.9.2",
"v0.9.0",
"v0.8.5",
"v0.8.0",
"v0.7.8",
"v0.7.5",
"v0.7.1",
"v0.7.0",
"v0.6.8",
"v0.6.7",
"v0.6.6",
"v0.6.5",
"v0.6.4",
"v0.6.3",
"v0.6.2",
"v0.6.1",
"v0.6.0",
"v0.5.9",
"v0.5.8",
"v0.5.7",
"v0.5.6",
"v0.5.6-alpha1",
"v0.5.5",
"v0.5.46",
"v0.5.45",
"v0.5.44",
"v0.5.43",
"v0.5.42",
"v0.5.41",
"v0.5.4",
"v0.5.3",
"v0.5.2",
"v0.5.1",
"v0.5.0",
"v0.4.94",
"v0.4.93",
"v0.4.92",
"v0.4.91",
"v0.4.9",
"v0.4.8",
"v0.4.7",
"v0.4.6",
"v0.4.5",
"v0.4.4",
"v0.4.32",
"v0.4.3-x1",
"v0.4.3",
"v0.4.2",
"v0.4.1-x2",
"v0.4.1",
"v0.4.0",
"v0.3.9",
"v0.3.8",
"v0.3.7",
"v0.3.6",
"v0.3.5",
"v0.3.4",
"v0.3.3",
"v0.3.2",
"v0.3.1",
"v0.3.0",
"v0.2.9",
"v0.2.8",
"v0.2.7",
"v0.2.6",
"v0.2.5",
"v0.2.4",
"v0.2.3",
"v0.2.2",
"v0.2.1",
"v0.2.0",
"v0.1.9",
"v0.1.8",
"v0.1.7",
"v0.1.6",
"v0.1.5",
"v0.1.4",
"v0.1.3",
"v0.1.2",
"v0.1.1",
"v0.1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82233.json"
}
}
],
"modified": "2026-10-28T02:30:24.292969666Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82233.json",
"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-p23f-cm6q-2qp8",
"https://nvd.nist.gov/vuln/detail/CVE-2026-82233",
"https://www.vulncheck.com/advisories/siyuan-before-3.8.1-path-traversal-via-asset-upload"
],
"provider_metadata": {
"cwe_ids": [
"CWE-22"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82233.json"
}
},
"related_cves": [
{
"value": "CVE-2026-82233",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 490981,
"published_at": "2026-08-28T10:49:23.913+00:00"
}