CVE record · CVE-2026-1761

Libsoup: stack-based buffer overflow in libsoup multipart response parsingmultipart http response

CVSS 8.6 HighEPSS 0.011 · 64th percentile

Published by the CVE Program (CNA: redhat) at 2 Feb 2026, 14:01 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Red Hat	Red Hat Enterprise Linux 10 Package name: libsoup3 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:3.6.5-3.el10_1.9 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 10 Package name: libsoup3 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:3.6.5-3.el10_1.10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support Package name: libsoup3 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:3.6.5-3.el10_0.14 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.62.2-11.el7_9 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: spice-client-win https://access.redhat.com/downloads/content/package-browser/	unaffected 0:8.10-7 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.62.3-13.el8_10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.62.3-13.el8_10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.62.3-1.el8_2.8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support Package name: spice-client-win https://access.redhat.com/downloads/content/package-browser/	unaffected 0:8.10-7.el8_2.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.62.3-2.el8_4.8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Package name: spice-client-win https://access.redhat.com/downloads/content/package-browser/	unaffected 0:8.10-7.el8_4.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.62.3-2.el8_4.8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Package name: spice-client-win https://access.redhat.com/downloads/content/package-browser/	unaffected 0:8.10-7.el8_4.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.62.3-2.el8_6.8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Package name: spice-client-win https://access.redhat.com/downloads/content/package-browser/	unaffected 0:8.10-7.el8_6.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.62.3-2.el8_6.8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service Package name: spice-client-win https://access.redhat.com/downloads/content/package-browser/	unaffected 0:8.10-7.el8_6.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.62.3-2.el8_6.8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Package name: spice-client-win https://access.redhat.com/downloads/content/package-browser/	unaffected 0:8.10-7.el8_6.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.62.3-3.el8_8.8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service Package name: spice-client-win https://access.redhat.com/downloads/content/package-browser/	unaffected 0:8.10-7.el8_8.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.62.3-3.el8_8.8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Package name: spice-client-win https://access.redhat.com/downloads/content/package-browser/	unaffected 0:8.10-7.el8_8.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.72.0-12.el9_7.5 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.72.0-8.el9_0.9 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.72.0-8.el9_2.10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.72.0-8.el9_4.9 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.72.0-10.el9_6.6 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Dev Spaces (RHOSDS) 3.26 Package name: devspaces/openvsx-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1770851052 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Dev Spaces (RHOSDS) 3.26 Package name: devspaces/pluginregistry-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1770918006 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Dev Spaces (RHOSDS) 3.26 Package name: devspaces/udi-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1770913862 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 6 Package name: libsoup https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unknown

Identifiers: CVE-2026-1761
CNA: redhat
Weakness (CWE): CWE-121
Tags: Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Enterprise Linux 7 Extended Lifecycle Support
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.2 Advanced Update Support
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Memory corruption
Published: 2 Feb 2026
Updated: 4 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.6	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L	CNA (redhat)Used for this record
8.6	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L	ADP (redhat-SADP)

CISA KEV Not listed.
EPSS 0.011, the 64th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

2 Feb 2026, 14:01 UTC Confirmed by the CVE List
2 Feb 2026, 14:16 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2026:1948 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2005 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2006 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2007 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2008 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2049 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2182 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2214 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2215 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2216 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2396 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2402 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2410 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2512 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2513 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2514 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2528 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2529 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2628 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:2844 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2026-1761 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2435961 issue-trackingredhat
gitlab.gnome.org/GNOME/libsoup/-/issues/493

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.