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Description
A flaw was found in the asynchronous message queue handling of the libsoup library, widely used by GNOME and WebKit-based applications to manage HTTP/2 communications. When network operations are aborted at specific timing intervals, an internal message queue item may be freed twice due to missing state synchronization. This leads to a use-after-free memory access, potentially crashing the affected application. Attackers could exploit this behavior remotely by triggering specific HTTP/2 read and cancel sequences, resulting in a denial-of-service condition.
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[{"vendor":"GNOME","product":"libsoup","defaultStatus":"unaffected","collectionURL":"https://gitlab.gnome.org/GNOME/libsoup","packageName":"libsoup","versions":[{"version":"0","lessThanOrEqual":"3.6.5","versionType":"semver","status":"affected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup3","cpes":["cpe:/o:redhat:enterprise_linux:10.1"],"versions":[{"version":"0:3.6.5-3.el10_1.7","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10.0 Extended Update Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup3","cpes":["cpe:/o:redhat:enterprise_linux_eus:10.0"],"versions":[{"version":"0:3.6.5-3.el10_0.10","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"unknown","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:9"]}]
CVE Modified by Red Hat, Inc.6/25/2026 12:17:37 AM
Action
Type
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Affected
[{"vendor":"GNOME","product":"libsoup","defaultStatus":"unaffected","collectionURL":"https://gitlab.gnome.org/GNOME/libsoup","packageName":"libsoup","versions":[{"version":"0","lessThanOrEqual":"3.6.5","versionType":"semver","status":"affected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup3","cpes":["cpe:/o:redhat:enterprise_linux:10.1"],"versions":[{"version":"0:3.6.5-3.el10_1.7","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10.0 Extended Update Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup3","cpes":["cpe:/o:redhat:enterprise_linux_eus:10.0"],"versions":[{"version":"0:3.6.5-3.el10_0.10","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"unknown","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:9"]}]
[{"vendor":"GNOME","product":"libsoup","defaultStatus":"unaffected","collectionURL":"https://gitlab.gnome.org/GNOME/libsoup","packageName":"libsoup","versions":[{"version":"0","lessThanOrEqual":"3.6.5","versionType":"semver","status":"affected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup3","cpes":["cpe:/o:redhat:enterprise_linux:10.1"],"versions":[{"version":"0:3.6.5-3.el10_1.7","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10.0 Extended Update Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup3","cpes":["cpe:/o:redhat:enterprise_linux_eus:10.0"],"versions":[{"version":"0:3.6.5-3.el10_0.10","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"unknown","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:9"]},{"vendor":"Red Hat","product":"Red Hat In-Vehicle Operating System 1","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/do
[{"vendor":"GNOME","product":"libsoup","defaultStatus":"unaffected","collectionURL":"https://gitlab.gnome.org/GNOME/libsoup","packageName":"libsoup","versions":[{"version":"0","lessThanOrEqual":"3.6.5","versionType":"semver","status":"affected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup3","cpes":["cpe:/o:redhat:enterprise_linux:10.1"],"versions":[{"version":"0:3.6.5-3.el10_1.7","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10.0 Extended Update Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup3","cpes":["cpe:/o:redhat:enterprise_linux_eus:10.0"],"versions":[{"version":"0:3.6.5-3.el10_0.10","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"unknown","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsoup","cpes":["cpe:/o:redhat:enterprise_linux:9"]}]
CVE Modified by Red Hat, Inc.3/19/2026 11:16:17 AM
CVE Modified by Red Hat, Inc.12/17/2025 10:15:48 AM
Action
Type
Old Value
New Value
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Reference
https://access.redhat.com/errata/RHSA-2025:23437
CVE Modified by Red Hat, Inc.12/11/2025 6:15:45 PM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2025:23139
New CVE Received from Red Hat, Inc.10/23/2025 6:15:32 AM
Action
Type
Old Value
New Value
Added
Description
A flaw was found in the asynchronous message queue handling of the libsoup library, widely used by GNOME and WebKit-based applications to manage HTTP/2 communications. When network operations are aborted at specific timing intervals, an internal message queue item may be freed twice due to missing state synchronization. This leads to a use-after-free memory access, potentially crashing the affected application. Attackers could exploit this behavior remotely by triggering specific HTTP/2 read and cancel sequences, resulting in a denial-of-service condition.
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