Critical
Security advisory
IBM Langflow OSS 1.0.0 through 1.9.6 contains a missing authentication vulnerability in /api/v1/build_public_tmp/ endpoints that allows an unauthenticated attacker to read build event data or cancel jobs using a valid job identifier, resulting in information disclosure and denial of service.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-10560
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:12 UTC · Revision 1
Source evidence
IBM Langflow OSS 1.0.0 through 1.9.6 contains a missing authentication vulnerability in /api/v1/build_public_tmp/ endpoints that allows an unauthenticated attacker to read build event data or cancel jobs using a valid job identifier, resulting in information disclosure and denial of service.
osv:CVE-2026-10560
Complete source record
{
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"url": "https://osv.dev/vulnerability/CVE-2026-10560",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2026-10560",
"summary": "IBM Langflow OSS 1.0.0 through 1.9.6 contains a missing authentication vulnerability in /api/v1/build_public_tmp/ endpoints that allows an unauthenticated attacker to read build event data or cancel jobs using a valid job identifier, resulting in information disclosure and denial of service.",
"evidence": "osv:CVE-2026-10560",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2026-10560",
"aliases": [
"CVE-2026-10560"
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"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/langflow-ai/langflow",
"type": "GIT",
"events": [
{
"introduced": "24d9e86885b877ea3e9d03cbc50b963765489721"
},
{
"last_affected": "b11bd1f261b15b35d0bfdb3fc07a94fd0ea0aee6"
}
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"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
"range": [
{
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},
{
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"database_specific": {
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}
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],
"modified": "2026-10-27T02:30:57.293683400Z",
"provider": "osv",
"references": [
"https://www.ibm.com/support/pages/node/7277996"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2026-10560",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 460061,
"published_at": "2026-06-30T20:17:27.263+00:00"
}