WID-SEC-W-2026-3096
Vulnerability from csaf_certbund - Published: 2026-08-30 22:00 - Updated: 2026-09-14 22:00Summary
Langflow OSS: Mehrere Schwachstellen
Severity
Hoch
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Langflow bietet eine visuelle Schnittstelle zum Erstellen von LLM-basierten Anwendungen.
Angriff: Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Langflow OSS ausnutzen, um Sicherheitsmaßnahmen zu umgehen, beliebigen Code auszuführen, Server-Side Request Forgery (SSRF) durchzuführen, sensible Daten offenzulegen oder zu manipulieren oder Cross-Site-Scripting-Angriffe durchzuführen.
Betroffene Betriebssysteme: - Sonstiges
- UNIX
- Windows
Affected products
Known affected
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Open Source Langflow OSS <1.11.3
Open Source / Langflow
|
OSS <1.11.3 |
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
Affected products
Known affected
1 product, the same list as for
CVE-2026-12763
References
9 references
{
"document": {
"aggregate_severity": {
"text": "hoch"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "Langflow bietet eine visuelle Schnittstelle zum Erstellen von LLM-basierten Anwendungen.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Langflow OSS ausnutzen, um Sicherheitsma\u00dfnahmen zu umgehen, beliebigen Code auszuf\u00fchren, Server-Side Request Forgery (SSRF) durchzuf\u00fchren, sensible Daten offenzulegen oder zu manipulieren oder Cross-Site-Scripting-Angriffe durchzuf\u00fchren.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Sonstiges\n- UNIX\n- Windows",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2026-3096 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3096.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-3096 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3096"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7285639 vom 2026-08-30",
"url": "https://www.ibm.com/support/pages/node/7285639"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7285640 vom 2026-08-30",
"url": "https://www.ibm.com/support/pages/node/7285640"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7285641 vom 2026-08-30",
"url": "https://www.ibm.com/support/pages/node/7285641"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7285642 vom 2026-08-30",
"url": "https://www.ibm.com/support/pages/node/7285642"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7285643 vom 2026-08-30",
"url": "https://www.ibm.com/support/pages/node/7285643"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7285644 vom 2026-08-30",
"url": "https://www.ibm.com/support/pages/node/7285644"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7285646 vom 2026-08-30",
"url": "https://www.ibm.com/support/pages/node/7285646"
}
],
"source_lang": "en-US",
"title": "Langflow OSS: Mehrere Schwachstellen",
"tracking": {
"current_release_date": "2026-09-14T22:00:00.000+00:00",
"generator": {
"date": "2026-09-15T10:20:13.247+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.6.0"
}
},
"id": "WID-SEC-W-2026-3096",
"initial_release_date": "2026-08-30T22:00:00.000+00:00",
"revision_history": [
{
"date": "2026-08-30T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-09-06T22:00:00.000+00:00",
"number": "2",
"summary": "Referenz(en) aufgenommen: EUVD-2026-71217, EUVD-2026-71215, EUVD-2026-71271, EUVD-2026-71270, EUVD-2026-71262, EUVD-2026-71260, EUVD-2026-71216, EUVD-2026-71462, EUVD-2026-71598, EUVD-2026-71597, EUVD-2026-71596, EUVD-2026-71269, EUVD-2026-71266"
},
{
"date": "2026-09-14T22:00:00.000+00:00",
"number": "3",
"summary": "Referenz(en) aufgenommen: EUVD-2026-78086, EUVD-2026-78084, EUVD-2026-78087"
}
],
"status": "final",
"version": "3"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "OSS \u003c1.11.3",
"product": {
"name": "Open Source Langflow OSS \u003c1.11.3",
"product_id": "T058499"
}
},
{
"category": "product_version",
"name": "OSS 1.11.3",
"product": {
"name": "Open Source Langflow OSS 1.11.3",
"product_id": "T058499-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:langflow:langflow:oss__1.11.2"
}
}
}
],
"category": "product_name",
"name": "Langflow"
}
],
"category": "vendor",
"name": "Open Source"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-12763",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-12763"
},
{
"cve": "CVE-2026-12765",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-12765"
},
{
"cve": "CVE-2026-12766",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-12766"
},
{
"cve": "CVE-2026-17631",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-17631"
},
{
"cve": "CVE-2026-19298",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-19298"
},
{
"cve": "CVE-2026-19299",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-19299"
},
{
"cve": "CVE-2026-19300",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-19300"
},
{
"cve": "CVE-2026-19301",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-19301"
},
{
"cve": "CVE-2026-19302",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-19302"
},
{
"cve": "CVE-2026-19303",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-19303"
},
{
"cve": "CVE-2026-19304",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-19304"
},
{
"cve": "CVE-2026-19305",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-19305"
},
{
"cve": "CVE-2026-19306",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-19306"
},
{
"cve": "CVE-2026-8447",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-8447"
},
{
"cve": "CVE-2026-9138",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-9138"
},
{
"cve": "CVE-2026-9186",
"product_status": {
"known_affected": [
"T058499"
]
},
"release_date": "2026-08-30T22:00:00.000+00:00",
"title": "CVE-2026-9186"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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