Kozea WeasyPrint up to 67.x default_url_fetcher redirect

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Kozea WeasyPrint up to 67.x. Impacted is the function default_url_fetcher. The manipulation results in redirect. This vulnerability was named CVE-2025-68616. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Kozea WeasyPrint up to 67.x. It has been classified as problematic. Affected is the function default_url_fetcher. The manipulation with an unknown input leads to a redirect vulnerability. CWE is classifying the issue as CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. This is going to have an impact on integrity. CVE summarizes:

WeasyPrint helps web developers to create PDF documents. Prior to version 68.0, a server-side request forgery (SSRF) protection bypass exists in WeasyPrint's `default_url_fetcher`. The vulnerability allows attackers to access internal network resources (such as `localhost` services or cloud metadata endpoints) even when a developer has implemented a custom `url_fetcher` to block such access. This occurs because the underlying `urllib` library follows HTTP redirects automatically without re-validating the new destination against the developer's security policy. Version 68.0 contains a patch for the issue.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-68616 since 12/19/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1204.001.

The vulnerability scanner Nessus provides a plugin with the ID 294937 (openSUSE 16 Security Update : python-weasyprint (openSUSE-SU-2026:20069-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 68.0 eliminates this vulnerability. Applying the patch b6a14f0f3f4ce9c0c75c1a2d73cb1c5d43f0e565 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (294937) and EUVD (EUVD-2025-206301). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 7.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Redirect
CWE: CWE-601
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 294937
Nessus Name: openSUSE 16 Security Update : python-weasyprint (openSUSE-SU-2026:20069-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: WeasyPrint 68.0
Patch: b6a14f0f3f4ce9c0c75c1a2d73cb1c5d43f0e565

Timelineinfo

12/19/2025 CVE reserved
01/19/2026 +31 days Advisory disclosed
01/19/2026 +0 days VulDB entry created
02/18/2026 +30 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-983w-rhvv-gwmv
Status: Confirmed

CVE: CVE-2025-68616 (🔒)
GCVE (CVE): GCVE-0-2025-68616
GCVE (VulDB): GCVE-100-341808
EUVD: 🔒

Entryinfo

Created: 01/19/2026 19:39
Updated: 02/18/2026 17:40
Changes: 01/19/2026 19:39 (67), 01/20/2026 10:08 (1), 01/23/2026 07:02 (2), 02/18/2026 17:40 (11)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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