CVE-2026-33497
HighExploitedPublic exploitlangflow: /profile_pictures/{folder_name}/{file_name} endpoint file reading
Published Mar 20, 2026 · Updated Aug 12, 2026 · Also known as GHSA-ph9w-r52h-28p7, PYSEC-2026-81
Key Facts
Patch immediately- CVE-2026-33497 is a high-severity vulnerability (CVSS 8.7 v4) affecting Langflow.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Aug 11, 2026. Public exploit code is available.
- EPSS estimates a 2.0% probability of exploitation in the next 30 days.
- Fixed versions are available, including Langflow 1.7.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v4
8.7
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (30-day exploit likelihood)
2.0%
Higher than 80.6% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Aug 11, 2026 | n/a | Not reported |
| CIRCL KEV | Aug 11, 2026 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| LangflowLangflow | >= < 1.7.1 | 1.7.1 |
Patched Releases
Langflow
1.7.1
Timeline
Publicly disclosed
Mar 20, 2026
Added to Industry KEV feed
Aug 11, 2026
Added to CIRCL KEV
Aug 11, 2026
Last updated
Aug 12, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- advisoryGHSA advisory
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33497.json
- advisoryhttps://github.com/pypa/advisory-database/tree/main/vulns/langflow/PYSEC-2026-81.yaml
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-33497
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Langflow is a tool for building and deploying AI-powered agents and workflows.
Affected: Langflow versions >= < 1.7.1. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Aug 11, 2026.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Langflow 1.7.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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