CVE-2026-23521Public exploitNetwork attack vector

Authenticated arbitrary file write via absolute uniqueId

Published Feb 23, 2026 · Updated Feb 23, 2026

Path traversal in Traccar Server 6.11.1 and earlier allows remote authenticated users to write files outside the media directory. MediaManager.createFile passes an attacker-controlled absolute device uniqueId to Paths.get(mediaRoot, uniqueId, name), which discards the media root. Device create or edit and image-upload permissions are required; writable files are limited by the server process's filesystem privileges.

CVSS severity6.5
Medium
EPSS probability0.32%
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 Traccar Server 6.11.1 and earlier allows remote authenticated users to write files outside the media directory. MediaManager.createFile passes an attacker-controlled absolute device uniqueId to Paths.get(mediaRoot, uniqueId, name), which discards the media root. Device create or edit and image-upload permissions are required; writable files are limited by the server process's filesystem privileges.

The record

CVE
CVE-2026-23521
Published
Feb 23, 2026
Updated
Feb 23, 2026
Vendor
Traccar
Product
Traccar Server
Classifications
CWE-22, CWE-73, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 23, 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=<= 6.11.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Traccar · Traccar Serverversion=<= 6.11.1

Published CVSS scores

6.5GitHubCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-73External Control of File Name or Path
T1565.001Stored Data Manipulation

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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