Exploitation evidence
Known exploited · CISA KEV listed
Added 2025-05-05. Ransomware campaign use: Known.
CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: 2025-05-26. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
langflow-ai / langflow
Default status: unaffected
- affected: 0 to < 1.3.0 (semver)
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
CVE Program record ↗ · Download tracked evidence as JSON
- https://github.com/langflow-ai/langflow/pull/6911
- https://github.com/langflow-ai/langflow/releases/tag/1.3.0
- https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/
- https://www.vulncheck.com/advisories/langflow-unauthenticated-rce
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.99993,
"percentile": 0.99987
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.99993,
"percentile": 0.99987
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.99993,
"percentile": 0.99987
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.99993,
"percentile": 0.99987
}08 Nov 2026, 18:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-3248",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-08-15T19:50:13.871465Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2025-05-05",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248"
},
"type": "kev"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-10-21T22:55:21.731Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-05-05T00:00:00.000Z",
"value": "CVE-2025-3248 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:pypi/langflow",
"product": "langflow",
"repo": "https://github.com/langflow-ai/langflow",
"vendor": "langflow-ai",
"versions": [
{
"lessThan": "1.3.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.3.0",
"versionStartIncluding": "0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Naveen Sunkavally of Horizon3.ai"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Langflow versions prior to 1.3.0 are susceptible to code injection in \nthe /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary\ncode."
}
],
"value": "Langflow versions prior to 1.3.0 are susceptible to code injection in \nthe /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary\ncode."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-306",
"description": "CWE-306 Missing Authentication for Critical Function",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-08T14:00:13.850Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"tags": [
"issue-tracking",
"patch"
],
"url": "https://github.com/langflow-ai/langflow/pull/6911"
},
{
"name": "langflow 1.3.0 Release Notes",
"tags": [
"release-notes"
],
"url": "https://github.com/langflow-ai/langflow/releases/tag/1.3.0"
},
{
"tags": [
"exploit"
],
"url": "https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/"
},
{
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/langflow-unauthenticated-rce"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code",
"x_generator": {
"engine": "vulncheck"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2025-3248",
"datePublished": "2025-04-07T14:22:38.980Z",
"dateReserved": "2025-04-04T00:58:44.770Z",
"dateUpdated": "2026-11-08T14:00:13.850Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.99993,
"percentile": 0.99987
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.99993,
"percentile": 0.99987
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.99993,
"percentile": 0.99987
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.99993,
"percentile": 0.99987
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.99993,
"percentile": 0.99987
}03 Nov 2026, 18:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-3248",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-08-15T19:50:13.871465Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2025-05-05",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248"
},
"type": "kev"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-10-21T22:55:21.731Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-05-05T00:00:00.000Z",
"value": "CVE-2025-3248 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:pypi/langflow",
"product": "langflow",
"repo": "https://github.com/langflow-ai/langflow",
"vendor": "langflow-ai",
"versions": [
{
"lessThan": "1.3.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.3.0",
"versionStartIncluding": "0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Naveen Sunkavally of Horizon3.ai"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Langflow versions prior to 1.3.0 are susceptible to code injection in \nthe /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary\ncode."
}
],
"value": "Langflow versions prior to 1.3.0 are susceptible to code injection in \nthe /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary\ncode."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-306",
"description": "CWE-306 Missing Authentication for Critical Function",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-08T15:21:16.208Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/langflow-ai/langflow/pull/6911"
},
{
"tags": [
"release-notes"
],
"url": "https://github.com/langflow-ai/langflow/releases/tag/1.3.0"
},
{
"tags": [
"exploit"
],
"url": "https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/"
},
{
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/langflow-unauthenticated-rce"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code",
"x_generator": {
"engine": "vulncheck"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2025-3248",
"datePublished": "2025-04-07T14:22:38.980Z",
"dateReserved": "2025-04-04T00:58:44.770Z",
"dateUpdated": "2026-10-08T15:21:16.208Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.99993,
"percentile": 0.99987
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2025-3248",
"cwes": [
"CWE-306"
],
"dateAdded": "2025-05-05",
"dueDate": "2025-05-26",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Known",
"notes": "This vulnerability affects a common open-source project, third-party library, or a protocol used by different products. For more information, please see: https://github.com/advisories/GHSA-c995-4fw3-j39m ; https://nvd.nist.gov/vuln/detail/CVE-2025-3248",
"product": "Langflow",
"requiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
"shortDescription": "Langflow contains a missing authentication vulnerability in the /api/v1/validate/code endpoint that allows a remote, unauthenticated attacker to execute arbitrary code via crafted HTTP requests.",
"vendorProject": "Langflow",
"vulnerabilityName": "Langflow Missing Authentication Vulnerability"
}