CVE-2026-7658Network attack vector

Authenticated directory deletion via username path traversal

Published Aug 5, 2026 · Updated Aug 5, 2026

Path traversal in IBM Langflow OSS 1.0.0 through 1.10.3 allows remote authenticated users to delete arbitrary directories. The affected path construction accepts traversal sequences in the username field and treats the resulting path as contained without canonical boundary validation. Low-privileged access is sufficient to remove other tenants' data or JWT signing keys, invalidating sessions within the affected deployment.

CVSS severity6.5
Medium
EPSS probability0.34%
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 IBM Langflow OSS 1.0.0 through 1.10.3 allows remote authenticated users to delete arbitrary directories. The affected path construction accepts traversal sequences in the username field and treats the resulting path as contained without canonical boundary validation. Low-privileged access is sufficient to remove other tenants' data or JWT signing keys, invalidating sessions within the affected deployment.

The record

CVE
CVE-2026-7658
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
IBM
Product
Langflow OSS
Classifications
CWE-22, CAPEC-126, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=1.0.0 <=1.10.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Langflow OSSversion=1.0.0 <=1.10.3

Published CVSS scores

6.5IBM CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A: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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-126Path Traversal
T1485Data Destruction

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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