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Libsoup: libsoup: duplicate host header handling causes host-parsing discrepancy (first- vs last-value wins) (Red Hat Red Hat Enterprise Linux 10)

CVE-2025-14523
HIGH 8.2

At a glance

Source
NVD
EPSS
EPSS 0.54 % · percentile 46 ()
State
PUBLISHED
Published
Updated
Assigner
redhat
NVD status
Deferred

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Description

A flaw in libsoup’s HTTP header handling allows multiple Host: headers in a request and returns the last occurrence for server-side processing. Common front proxies often honor the first Host: header, so this mismatch can cause vhost confusion where a proxy routes a request to one backend but the backend interprets it as destined for another host. This discrepancy enables request-smuggling style attacks, cache poisoning, or bypassing host-based access controls when an attacker supplies duplicate Host headers.

Weaknesses (CWE)

  • CWE-444 — Inconsistent Interpretation of HTTP Requests

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:Nredhat
CVSS 3.1HIGH 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:NNVD · secalert@redhat.com (Secondary)

European references

Affected products

ProductVersions
Red Hat · Red Hat Enterprise Linux 10unaffected 0:3.6.5-3.el10_1.8 < *
Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:3.6.5-3.el10_0.11 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:2.62.2-10.el7_9 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:2.62.3-11.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:8.10-6.el8_10.1 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:2.62.3-11.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Supportunaffected 0:2.62.3-1.el8_2.7 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Supportunaffected 0:8.10-6.el8_2.1 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:2.62.3-2.el8_4.7 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:8.10-6.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:2.62.3-2.el8_4.7 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:8.10-6.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:2.62.3-2.el8_6.7 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:8.10-6.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Serviceunaffected 0:2.62.3-2.el8_6.7 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Serviceunaffected 0:8.10-6.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutionsunaffected 0:2.62.3-2.el8_6.7 < *
Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutionsunaffected 0:8.10-6.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:2.62.3-3.el8_8.7 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:8.10-6.el8_8.1 < *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD