Libsoup: information disclosure may leads libsoup client sends authorization header to a different host when being redirected by a server

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Summary

CVECVE-2025-46421
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-04-24 13:15:45 UTC
Updated2026-06-25 05:16:43 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 6.8 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS: 0.004780000 probability, percentile 0.376350000 (date 2026-06-25)

Problem Types: CWE-497 | CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
3.1CNACVSS6.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 10 unaffected 0:3.6.5-3.el10_0 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:2.62.3-8.el8_10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:2.62.3-8.el8_10 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support unaffected 0:2.62.3-1.el8_2.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support unaffected 0:2.62.3-2.el8_4.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service unaffected 0:2.62.3-2.el8_4.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Update Services For SAP Solutions unaffected 0:2.62.3-2.el8_4.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support unaffected 0:2.62.3-2.el8_6.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service unaffected 0:2.62.3-2.el8_6.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions unaffected 0:2.62.3-2.el8_6.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support unaffected 0:2.62.3-3.el8_8.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:2.72.0-10.el9_6.1 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions unaffected 0:2.72.0-8.el9_0.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support unaffected 0:2.72.0-8.el9_2.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support unaffected 0:2.72.0-8.el9_4.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat In-Vehicle Operating System 1 Not specified Not specified

References

ReferenceSourceLinkTags
access.redhat.com/errata/RHSA-2025:4439 [email protected] access.redhat.com
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com
access.redhat.com/errata/RHSA-2025:4624 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4538 [email protected] access.redhat.com
gitlab.gnome.org/GNOME/libsoup/-/issues/439 [email protected] gitlab.gnome.org
access.redhat.com/errata/RHSA-2025:4508 [email protected] access.redhat.com
access.redhat.com/security/cve/CVE-2025-46421 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4609 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4440 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:7505 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:7436 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4560 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2025:4568 [email protected] access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2025-04-24T01:35:00.884ZReported to Red Hat.
CNA2025-04-24T00:00:00.000ZMade public.

Workarounds

CNA: Currently, no mitigation is available for this vulnerability.

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