CVE-2026-33497Public exploitNetwork attack vector

Unauthenticated file disclosure via path parameter traversal

Published Mar 24, 2026 · Updated Mar 24, 2026

Path traversal in Langflow OSS before 1.7.1 allows remote attackers to read service-accessible files via crafted URL paths. The download_profile_picture function joins unsanitized folder_name and file_name values into a profile-picture path and reads the resolved file without enforcing directory containment. The endpoint requires no authentication; disclosure is limited to files readable by the service, including the JWT-signing secret used to forge administrator tokens.

CVSS severity8.7
High
EPSS probability19.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Langflow OSS before 1.7.1 allows remote attackers to read service-accessible files via crafted URL paths. The download_profile_picture function joins unsanitized folder_name and file_name values into a profile-picture path and reads the resolved file without enforcing directory containment. The endpoint requires no authentication; disclosure is limited to files readable by the service, including the JWT-signing secret used to forge administrator tokens.

The record

CVE
CVE-2026-33497
Published
Mar 24, 2026
Updated
Mar 24, 2026
Vendor
OpenBMC Project
Product
Langflow OSS
Classifications
CWE-22, CAPEC-126, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenBMC Project · Langflow OSSversion=< 1.7.1

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7GitHub, Inc.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 describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-126Path Traversal
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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