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CVE-2025-14523— Libsoup: libsoup: duplicate host header handling causes host-parsing discrepancy (first- vs last-value wins)

CVSS 8.2 · High EPSS 0.02% · P3
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I. Basic Information for CVE-2025-14523

Vulnerability Information
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Vulnerability Title
Libsoup: libsoup: duplicate host header handling causes host-parsing discrepancy (first- vs last-value wins)
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: NVD (National Vulnerability Database)
Vulnerability Title
libsoup 环境问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libsoup是GNOME项目的一款GNOME的HTTP客户端/服务器库。 libsoup存在环境问题漏洞，该漏洞源于HTTP标头处理不当，可能导致请求夹带攻击、缓存投毒或绕过基于主机的访问控制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Red HatRed Hat Enterprise Linux 10 0:3.6.5-3.el10_1.8 ~ * cpe:/o:redhat:enterprise_linux:10.1
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support 0:3.6.5-3.el10_0.11 ~ * cpe:/o:redhat:enterprise_linux_eus:10.0
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Support 0:2.62.2-10.el7_9 ~ * cpe:/o:redhat:rhel_els:7
Red HatRed Hat Enterprise Linux 8 0:2.62.3-11.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red HatRed Hat Enterprise Linux 8 0:8.10-6.el8_10.1 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red HatRed Hat Enterprise Linux 8 0:2.62.3-11.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support 0:2.62.3-1.el8_2.7 ~ * cpe:/a:redhat:rhel_aus:8.2::appstream
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support 0:8.10-6.el8_2.1 ~ * cpe:/a:redhat:rhel_aus:8.2::appstream
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:2.62.3-2.el8_4.7 ~ * cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:8.10-6.el8_4.1 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:2.62.3-2.el8_4.7 ~ * cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:8.10-6.el8_4.1 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:2.62.3-2.el8_6.7 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:8.10-6.el8_6.1 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Service 0:2.62.3-2.el8_6.7 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Service 0:8.10-6.el8_6.1 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:2.62.3-2.el8_6.7 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:8.10-6.el8_6.1 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service 0:2.62.3-3.el8_8.7 ~ * cpe:/o:redhat:rhel_e4s:8.8::baseos
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service 0:8.10-6.el8_8.1 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:2.62.3-3.el8_8.7 ~ * cpe:/o:redhat:rhel_e4s:8.8::baseos
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:8.10-6.el8_8.1 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red HatRed Hat Enterprise Linux 9 0:2.72.0-12.el9_7.3 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:2.72.0-8.el9_0.8 ~ * cpe:/a:redhat:rhel_e4s:9.0::appstream
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:2.72.0-8.el9_2.8 ~ * cpe:/a:redhat:rhel_e4s:9.2::appstream
Red HatRed Hat Enterprise Linux 9.4 Extended Update Support 0:2.72.0-8.el9_4.8 ~ * cpe:/a:redhat:rhel_eus:9.4::appstream
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support 0:2.72.0-10.el9_6.5 ~ * cpe:/a:redhat:rhel_eus:9.6::appstream
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6

II. Public POCs for CVE-2025-14523

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III. Intelligence Information for CVE-2025-14523

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IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-444

V. Comments for CVE-2025-14523

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