WebKitGTK/WPE WebKit up to 2.50.3 Web race condition

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in WebKitGTK and WPE WebKit up to 2.50.3. Impacted is an unknown function of the component Web Handler. Such manipulation leads to race condition. This vulnerability is listed as CVE-2025-43531. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in WebKitGTK and WPE WebKit up to 2.50.3. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Web Handler. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A race condition was addressed with improved state handling. This issue is fixed in watchOS 26.2, Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2, tvOS 26.2. Processing maliciously crafted web content may lead to an unexpected process crash.

The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2025-43531. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 279093 (Debian dsa-6083 : gir1.2-javascriptcoregtk-4.0 - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.50.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (279093) and CERT Bund (WID-SEC-2025-2891). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source WebKitGTK

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Race condition
CWE: CWE-362
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: 279093
Nessus Name: Debian dsa-6083 : gir1.2-javascriptcoregtk-4.0 - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: WebKitGTK/WPE WebKit 2.50.4

Timelineinfo

12/17/2025 Advisory disclosed
12/17/2025 +0 days VulDB entry created
01/24/2026 +38 days VulDB entry last update

Sourcesinfo

Advisory: seclists.org
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2025-43531 (🔒)
GCVE (CVE): GCVE-0-2025-43531
GCVE (VulDB): GCVE-100-336968
CERT Bund: WID-SEC-2025-2891 - WebKitGTK: Mehrere Schwachstellen ermöglichen Codeausführung und DoS

Entryinfo

Created: 12/17/2025 09:39
Updated: 01/24/2026 09:06
Changes: 12/17/2025 09:39 (52), 12/19/2025 02:50 (2), 12/20/2025 00:01 (7), 12/20/2025 09:01 (1), 01/04/2026 06:35 (1), 01/24/2026 09:06 (1)
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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