CVE-2026-5119

A flaw was found in libsoup. When establishing HTTPS tunnels through a configured HTTP proxy, sensitive session cookies are transmitted in cleartext within the initial HTTP CONNECT request. A network-positioned attacker or a malicious HTTP proxy can intercept these cookies, leading to potential session hijacking or user impersonation.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:13978
https://access.redhat.com/errata/RHSA-2026:14087
https://access.redhat.com/errata/RHSA-2026:15968
https://access.redhat.com/errata/RHSA-2026:17482
https://access.redhat.com/errata/RHSA-2026:19143
https://access.redhat.com/errata/RHSA-2026:19356
https://access.redhat.com/errata/RHSA-2026:21686
https://access.redhat.com/errata/RHSA-2026:22316
https://access.redhat.com/errata/RHSA-2026:22317
https://access.redhat.com/errata/RHSA-2026:22323
https://access.redhat.com/errata/RHSA-2026:22710
https://access.redhat.com/errata/RHSA-2026:22716
https://access.redhat.com/errata/RHSA-2026:24344
https://access.redhat.com/errata/RHSA-2026:24722
https://access.redhat.com/security/cve/CVE-2026-5119	Mitigation Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2452932	Issue Tracking Vendor Advisory
https://gitlab.gnome.org/GNOME/libsoup/-/issues/502	Exploit Issue Tracking

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gnome:libsoup:-:::::::*
	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:10.0:::::::*

History

No history.

Information

Published : 2026-03-30 07:15

Updated : 2026-06-17 10:58

NVD link : CVE-2026-5119

Mitre link : CVE-2026-5119

CVE.ORG link : CVE-2026-5119

JSON object : View

Products Affected

redhat

enterprise_linux

gnome

libsoup

CWE

CWE-319

Cleartext Transmission of Sensitive Information

{"id": "CVE-2026-5119", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-5119", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-30T16:00:52.017996Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.2, "exploitabilityScore": 1.6}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.2, "exploitabilityScore": 3.9}]}, "affected": [{"source": "secalert@redhat.com", "affectedData": [{"cpes": ["cpe:/o:redhat:enterprise_linux:10.1"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "versions": [{"status": "unaffected", "version": "0:3.6.5-3.el10_1.11", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:10.2"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "versions": [{"status": "unaffected", "version": "0:3.6.5-3.el10_2.11", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:3.6.5-3.el10_0.15", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_els:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support", "versions": [{"status": "unaffected", "version": "0:2.62.2-12.el7_9", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream", "cpe:/o:redhat:enterprise_linux:8::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "0:2.62.3-14.el8_10", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream", "cpe:/o:redhat:enterprise_linux:8::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "0:2.62.3-14.el8_10", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream", "cpe:/o:redhat:rhel_aus:8.4::baseos", "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "versions": [{"status": "unaffected", "version": "0:2.62.3-2.el8_4.9", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.4::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream", "cpe:/o:redhat:rhel_aus:8.4::baseos", "cpe:/o:redhat:rhel_eus_long_life:8.4::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On", "versions": [{"status": "unaffected", "version": "0:2.62.3-2.el8_4.9", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream", "cpe:/o:redhat:rhel_aus:8.6::baseos", "cpe:/o:redhat:rhel_eus_long_life:8.6::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "versions": [{"status": "unaffected", "version": "0:2.62.3-2.el8_6.9", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_aus:8.6::appstream", "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream", "cpe:/o:redhat:rhel_aus:8.6::baseos", "cpe:/o:redhat:rhel_eus_long_life:8.6::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On", "versions": [{"status": "unaffected", "version": "0:2.62.3-2.el8_6.9", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream", "cpe:/o:redhat:rhel_e4s:8.8::baseos", "cpe:/o:redhat:rhel_tus:8.8::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service", "versions": [{"status": "unaffected", "version": "0:2.62.3-3.el8_8.9", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:8.8::appstream", "cpe:/a:redhat:rhel_tus:8.8::appstream", "cpe:/o:redhat:rhel_e4s:8.8::baseos", "cpe:/o:redhat:rhel_tus:8.8::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:2.62.3-3.el8_8.9", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:2.72.0-12.el9_7.6", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:2.72.0-16.el9_8.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.0::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:2.72.0-8.el9_0.10", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.2::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:2.72.0-8.el9_2.11", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.4::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:2.72.0-8.el9_4.10", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.6::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:2.72.0-10.el9_6.7", "lessThan": "*", "versionType": "rpm"}], "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "packageName": "libsoup", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unknown"}]}], "published": "2026-03-30T07:15:58.350", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:13978", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:14087", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:15968", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:17482", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:19143", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:19356", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:21686", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:22316", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:22317", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:22323", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:22710", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:22716", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:24344", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:24722", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-5119", "tags": ["Mitigation", "Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452932", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "https://gitlab.gnome.org/GNOME/libsoup/-/issues/502", "tags": ["Exploit", "Issue Tracking"], "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-319"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in libsoup. When establishing HTTPS tunnels through a configured HTTP proxy, sensitive session cookies are transmitted in cleartext within the initial HTTP CONNECT request. A network-positioned attacker or a malicious HTTP proxy can intercept these cookies, leading to potential session hijacking or user impersonation."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en libsoup. Al establecer t\u00faneles HTTPS a trav\u00e9s de un proxy HTTP configurado, las cookies de sesi\u00f3n sensibles se transmiten en texto claro dentro de la solicitud HTTP CONNECT inicial. Un atacante posicionado en la red o un proxy HTTP malicioso puede interceptar estas cookies, lo que podr\u00eda conducir al secuestro potencial de la sesi\u00f3n o a la suplantaci\u00f3n de identidad del usuario."}], "lastModified": "2026-06-17T10:58:27.790", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gnome:libsoup:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C5BAC4F4-3ACD-4F4D-920C-F920FD2C5472"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D65C2163-CFC2-4ABB-8F4E-CB09CEBD006C"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}