CVE-2024-38449Public exploitNetwork attack vector

Authenticated file read via encoded path traversal

Published Jun 17, 2024 · Updated Nov 6, 2024

Path traversal in KasmVNC 1.3.1 allows remote authenticated users to read session-accessible files through its built-in webserver. The path validation in common/network/websocket.c checks for literal ../ sequences without first decoding the URL, so encoded dot segments bypass the directory boundary. Reachability requires valid credentials and standalone KasmVNC; Kasm Workspaces sessions are not exposed, and access does not exceed the session user's file permissions.

CVSS severity7.7
High
EPSS probability0.96%
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 KasmVNC 1.3.1 allows remote authenticated users to read session-accessible files through its built-in webserver. The path validation in common/network/websocket.c checks for literal ../ sequences without first decoding the URL, so encoded dot segments bypass the directory boundary. Reachability requires valid credentials and standalone KasmVNC; Kasm Workspaces sessions are not exposed, and access does not exceed the session user's file permissions.

The record

CVE
CVE-2024-38449
Published
Jun 17, 2024
Updated
Nov 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1083, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.7CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/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 exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1083File and Directory Discovery
T1005Data from Local System

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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