Medium
WeKan Attachment Migration attachmentMigration.js AttachmentMigrationBleed access control
Type: advisorySources: OSV
A vulnerability has been found in WeKan up to 8.20. The impacted element is an unknown function of the file server/attachmentMigration.js of the component Attachment Migration. The manipulation leads to improper access controls. The attack may be initiated remotely. Upgrading to version 8.21 is sufficient to resolve this issue. The identifier of the patch is 053bf1dfb76ef230db162c64a6ed50ebedf67eee. It is recommended to upgrade the affected component.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-1962
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 14:04 UTC · Revision 1
Source evidence
WeKan Attachment Migration attachmentMigration.js AttachmentMigrationBleed access control
core-osv · Original sourcePublished 5 Feb 2026, 20:32 UTC
A vulnerability has been found in WeKan up to 8.20. The impacted element is an unknown function of the file server/attachmentMigration.js of the component Attachment Migration. The manipulation leads to improper access controls. The attack may be initiated remotely. Upgrading to version 8.21 is sufficient to resolve this issue. The identifier of the patch is 053bf1dfb76ef230db162c64a6ed50ebedf67eee. It is recommended to upgrade the affected component.
osv:CVE-2026-1962
Complete source record
{
"id": "8156510743bd620b99417017e74919e3efd86d88a014d6b7a0c189cdf5ab1a20",
"url": "https://osv.dev/vulnerability/CVE-2026-1962",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "WeKan Attachment Migration attachmentMigration.js AttachmentMigrationBleed access control",
"summary": "A vulnerability has been found in WeKan up to 8.20. The impacted element is an unknown function of the file server/attachmentMigration.js of the component Attachment Migration. The manipulation leads to improper access controls. The attack may be initiated remotely. Upgrading to version 8.21 is sufficient to resolve this issue. The identifier of the patch is 053bf1dfb76ef230db162c64a6ed50ebedf67eee. It is recommended to upgrade the affected component.",
"evidence": "osv:CVE-2026-1962",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-1962",
"aliases": [
"CVE-2026-1962"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/wekan/wekan",
"type": "GIT",
"events": [
{
"introduced": "7f31d7c812a31eb8229d897558ae1657aa783fff"
},
{
"fixed": "053bf1dfb76ef230db162c64a6ed50ebedf67eee"
},
{
"fixed": "603a65ef17969a2388c9175d5853197dfa48efe1"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "8.10"
},
{
"last_affected": "8.10"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"range": [
{
"introduced": "8.11"
},
{
"last_affected": "8.11"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"range": [
{
"introduced": "8.12"
},
{
"last_affected": "8.12"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"range": [
{
"introduced": "8.14"
},
{
"last_affected": "8.14"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"range": [
{
"introduced": "8.15"
},
{
"last_affected": "8.15"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"range": [
{
"introduced": "8.16"
},
{
"last_affected": "8.16"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"range": [
{
"introduced": "8.17"
},
{
"last_affected": "8.17"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"range": [
{
"introduced": "8.18"
},
{
"last_affected": "8.18"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"range": [
{
"introduced": "8.19"
},
{
"last_affected": "8.19"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"range": [
{
"introduced": "8.20"
},
{
"last_affected": "8.20"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"range": [
{
"fixed": "053bf1dfb76ef230db162c64a6ed50ebedf67eee"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "603a65ef17969a2388c9175d5853197dfa48efe1"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v8.21"
}
]
}
}
],
"versions": [
"8.10",
"8.11",
"8.12",
"8.14",
"8.15",
"8.16",
"8.17",
"8.18",
"8.19",
"8.20",
"v8.20",
"v8.19",
"v8.18",
"v8.17",
"v8.16",
"v8.15",
"v8.14",
"v8.12",
"v8.11",
"v8.10"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1962.json"
}
}
],
"modified": "2026-10-28T02:30:29.512899501Z",
"provider": "osv",
"references": [
"https://github.com/wekan/wekan/",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1962.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-1962",
"https://vuldb.com/?id.344484",
"https://vuldb.com/?submit.742677",
"https://vuldb.com/?ctiid.344484",
"https://github.com/wekan/wekan/commit/053bf1dfb76ef230db162c64a6ed50ebedf67eee",
"https://github.com/wekan/wekan/releases/tag/v8.21"
],
"provider_metadata": {
"cwe_ids": [
"CWE-266",
"CWE-284"
],
"cna_assigner": "VulDB",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
},
{
"introduced": "8.1"
},
{
"last_affected": "8.1"
},
{
"introduced": "8.2"
},
{
"last_affected": "8.2"
},
{
"introduced": "8.3"
},
{
"last_affected": "8.3"
},
{
"introduced": "8.4"
},
{
"last_affected": "8.4"
},
{
"introduced": "8.5"
},
{
"last_affected": "8.5"
},
{
"introduced": "8.6"
},
{
"last_affected": "8.6"
},
{
"introduced": "8.7"
},
{
"last_affected": "8.7"
},
{
"introduced": "8.8"
},
{
"last_affected": "8.8"
},
{
"introduced": "8.9"
},
{
"last_affected": "8.9"
},
{
"introduced": "8.13"
},
{
"last_affected": "8.13"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1962.json"
}
},
"related_cves": [
{
"value": "CVE-2026-1962",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 496207,
"published_at": "2026-02-05T20:32:08.752+00:00"
}