CVE-2025-44137: MapTiler Tileserver-php v2.0 is vulnerable to Directory Traversal

This week

HIGH 8.2REMOTEDOWNGRADE

CVE-2025-44137 is a high-severity flaw (CVSS 8.2) affecting tileserver php. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MapTiler Tileserver-php v2.0 is vulnerable to Directory Traversal. The renderTile function within tileserver.php is responsible for delivering tiles that are stored as files on the server via web request. Creating the path to a file allows the insertion of "../" and thus read any file on the web server. Affected GET parameters are "TileMatrix", "TileRow", "TileCol" and "Format"

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-22
Published	2025-07-29
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: maptiler

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-29 17:15 UTCPublished CVE record published
2026-06-17 09:24 UTCUpdated Record last modified

maptiler tileserver php DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy tileserver-php || rpm -q tileserver-php || tileserver-php --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison tileserver-php sudo apt install tileserver-php=<VERSION_BEFORE_2.0> sudo apt-mark hold tileserver-php

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list tileserver-php sudo dnf downgrade tileserver-php-<VERSION_BEFORE_2.0> sudo dnf versionlock add tileserver-php

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: MapTiler Tileserver-php v2.0 - Unauthenticated File Read

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-44137?

tileserver php: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-44137 being exploited?

CVE-2025-44137 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-44137 affect?

CVE-2025-44137 affects tileserver php. Severity is high (CVSS 8.2). MapTiler Tileserver-php v2.0 is vulnerable to Directory Traversal. The renderTile function within tileserver.php is responsible for delivering tiles that are stored as files on the server via web request. Creating the path to a file allows

How urgent is CVE-2025-44137?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-44136 CRITICAL 9.8 DOWNGRADE MapTiler Tileserver-php v2.0 is vulnerable to Cross Site Scripting (XSS)

References

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