GNOME libsoup Authorization Header information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in GNOME libsoup and classified as problematic. The impacted element is an unknown function of the component Authorization Header Handler. The manipulation leads to information disclosure. This vulnerability is documented as CVE-2025-46421. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in GNOME libsoup (the affected version unknown). It has been rated as problematic. This issue affects an unknown part of the component Authorization Header Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

A flaw was found in libsoup. When libsoup clients encounter an HTTP redirect, they mistakenly send the HTTP Authorization header to the new host that the redirection points to. This allows the new host to impersonate the user to the original host that issued the redirect.

It is possible to read the advisory at bugzilla.redhat.com. The identification of this vulnerability is CVE-2025-46421 since 04/24/2025. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 235119 (RHEL 9 : libsoup (RHSA-2025:4439)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (235119), EUVD (EUVD-2025-12111) and CERT Bund (WID-SEC-2025-0935). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IGEL OS
  • IBM Power Hardware Management Console
  • SUSE openSUSE
  • Xerox FreeFlow Print Server

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

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

CNA Base Score: 6.8
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: 235119
Nessus Name: RHEL 9 : libsoup (RHSA-2025:4439)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/24/2025 🔍
04/24/2025 +0 days 🔍
04/24/2025 +0 days 🔍
01/04/2026 +255 days 🔍

Sourcesinfo

Vendor: gnome.org

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2025-46421 (🔍)
GCVE (CVE): GCVE-0-2025-46421
GCVE (VulDB): GCVE-100-306071
EUVD: 🔍
CERT Bund: WID-SEC-2025-0935 - Red Hat Enterprise Linux (libsoup): Mehrere Schwachstellen

Entryinfo

Created: 04/24/2025 10:56
Updated: 01/04/2026 21:19
Changes: 04/24/2025 10:56 (50), 05/05/2025 05:49 (13), 05/05/2025 13:13 (2), 11/18/2025 11:31 (1), 01/04/2026 21:19 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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