Bug 2448046 - CVE-2026-4271 libsoup3: libsoup: Denial of Service via Use-After-Free in HTTP/2 server [fedora-all]
Summary: CVE-2026-4271 libsoup3: libsoup: Denial of Service via Use-After-Free in HTTP...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: libsoup3
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Gwyn Ciesla
QA Contact:
URL:
Whiteboard: {"flaws": ["64ad0f68-910b-4810-a279-4...
Depends On:
Blocks: CVE-2026-4271
TreeView+ depends on / blocked
 
Reported: 2026-03-16 14:52 UTC by Abhishek Raj
Modified: 2026-08-27 01:10 UTC (History)
3 users (show)

Fixed In Version: libsoup3-3.6.6-9.fc44 libsoup3-3.6.6-4.fc43
Clone Of:
Environment:
Last Closed: 2026-08-15 01:05:27 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
GNOME Gitlab GNOME libsoup issues 496 0 None opened (CVE-2026-4271) (#YWH-PGM9867-167) Use After Free on libsoup through libsoup/server/http2/soup-server-message-io-http2.c... 2026-03-19 14:25:04 UTC

Description Abhishek Raj 2026-03-16 14:52:52 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Fedora Update System 2026-08-13 18:28:39 UTC
FEDORA-2026-c8cfd2f2f9 (libsoup3-3.6.6-9.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-c8cfd2f2f9

Comment 2 Fedora Update System 2026-08-14 01:02:51 UTC
FEDORA-2026-c8cfd2f2f9 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-c8cfd2f2f9`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-c8cfd2f2f9

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 3 Fedora Update System 2026-08-14 13:58:40 UTC
FEDORA-2026-f3ca65c0c9 (libsoup3-3.6.6-4.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-f3ca65c0c9

Comment 4 Fedora Update System 2026-08-15 01:05:27 UTC
FEDORA-2026-c8cfd2f2f9 (libsoup3-3.6.6-9.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 5 Fedora Update System 2026-08-15 01:55:48 UTC
FEDORA-2026-f3ca65c0c9 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-f3ca65c0c9`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-f3ca65c0c9

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-08-27 01:10:48 UTC
FEDORA-2026-f3ca65c0c9 (libsoup3-3.6.6-4.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.


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