What it is
CVE-2026-33497 is an unauthenticated vulnerability affecting langflow-ai langflow. Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.7.1, in the download_profile_picture...
Vulnerability report
Active exploitation observed
Confirmed confidence
Not in CISA KEV
CVE-2026-33497
langflow
langflow-ai / langflow · affected before 1.7.1
- Severity
- CVSS 8.7 · High
- Confidence
- Confirmed
- Exploit status
- Observed in sensors
- EPSS
- 19.6%
- First observed
- 11 Aug 2026
- Last observed
- 11 Aug 2026
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence sensors observed exploitation attempts with confirmed confidence.
Who is affected?
langflow-ai / langflow affected before 1.7.1.
What should we do?
Patch immediately, validate internet-facing exposure, and monitor for matching requests.
Overview
Langflow is a tool for building and deploying AI-powered agents and workflows
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.7.1, in the download_profile_picture function of the /profile_pictures/{folder_name}/{file_name} endpoint, the folder_name and file_name parameters are not strictly filtered, which allows the secret_key to be read across directories.
Version 1.7.1 contains a patch.
Vendor
Product
Affected
Status
langflow-ai
langflow
Before 1.7.1
Affected
- Published
- 24 Mar 2026
- Exploitation Reported
- 11 Aug 2026
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- None
CVE References
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-ph9w-r52h-28p7 github.com · CVE Record https://github.com/langflow-ai/langflow/security/advisories/GHSA-ph9w...
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
KEV Intelligence
Independent exploitation attestation added to the KEV Intelligence record.
Active exploitation observed
KEV Intelligence sensor
First-party sensor telemetry confirms matching exploitation attempts.
Proof of concept available
Nuclei Templates
Public scanner or PoC coverage increases practical exploitability.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| KEV Intelligence First | 2026-08-11 12:08 UTC |
Operational indicators for this CVE are listed under Detection.
Sensor telemetry
First-party evidence of exploitation activity
Aggregate observations show the scale, recency, and distribution of activity without overstating sparse data.
1
Attempts observed
1
Unique attacker IPs
1
Attacker countries
NL
1
Sensors observed
Exploitation attempts over the last 7 days
Daily events observed by KEV Intelligence sensors
Updated 11 Aug 2026
5 Aug
6 Aug
7 Aug
8 Aug
9 Aug
10 Aug
11 Aug
First observed 11 Aug 2026 · Last observed 11 Aug 2026
Pro adds sensor region and window summaries. Enterprise adds raw IPs, paths, User-Agents, and payloads.
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 1
- User-Agents
- 1
Raw values available in Pro and Enterprise.
Scanner coverage
Nuclei template detected 22 Jul 2026.
View Nuclei template (opens in new tab)Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →Attacker IP Indicators
Attacker IP indicators observed · available in Pro and Enterprise.
Sensor-derived attacker IP indicators are available to Pro and Enterprise accounts under Detection and through the Pro API.
Learn about Pro API accessScanner Artifacts
Scanner and exploit-framework references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-33497.yaml | 22 Jul 2026 |
Risk and context
Severity, weaknesses, and research context
CVSS v4.0
8.7
High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
19.6%
All CVSS Scores
CVSS v4.0
8.7
High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS v3.1
7.5
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
Langflow < 1.7.0 - Path Traversal
nuclei · Created Unknown
Timeline
From disclosure to observed exploitation
-
Observed by KEV Intelligence sensors
Evidence-backed exploitation signal
-
Indicator of compromise added
Indicators of compromise recorded
-
Public PoC available
Public proof-of-concept code published
-
Nuclei template available
Scanner coverage available
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2026-33497
Free JSON includes basic KEV fields{
"cve_id": "CVE-2026-33497",
"confidence": "Confirmed",
"cvss_score": 8.7,
"epss_score": 0.19584,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": true
},
"sensor_telemetry": { "attempts": 1, "sensors": 1 }
}