Bug 2457988 - CVE-2026-33555 haproxy: HAProxy: Request smuggling via HTTP/3 parser desynchronization [fedora-all]
Summary: CVE-2026-33555 haproxy: HAProxy: Request smuggling via HTTP/3 parser desynchr...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: haproxy
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Robert Scheck
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["2b5f4707-b862-4659-87f7-a...
Depends On:
Blocks: CVE-2026-33555
TreeView+ depends on / blocked
 
Reported: 2026-04-13 20:24 UTC by Jon Moroney
Modified: 2026-05-27 01:26 UTC (History)
1 user (show)

Fixed In Version: haproxy-3.0.23-2.fc44 haproxy-3.0.23-2.fc42 haproxy-3.0.23-2.fc43
Clone Of:
Environment:
Last Closed: 2026-05-27 00:52:20 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Jon Moroney 2026-04-13 20:24:20 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 Admin user for bugzilla script actions 2026-05-14 01:09:47 UTC
This package has changed maintainer in Fedora. Reassigning to the new maintainer of this component.

Comment 3 Fedora Update System 2026-05-15 23:06:04 UTC
FEDORA-2026-53196fc291 (haproxy-3.0.23-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-53196fc291

Comment 4 Fedora Update System 2026-05-15 23:06:39 UTC
FEDORA-2026-164a1e3151 (haproxy-3.0.23-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-164a1e3151

Comment 5 Fedora Update System 2026-05-15 23:07:18 UTC
FEDORA-2026-d790d66a08 (haproxy-3.0.23-1.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-d790d66a08

Comment 6 Fedora Update System 2026-05-16 00:57:05 UTC
FEDORA-2026-d790d66a08 has been pushed to the Fedora 42 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-d790d66a08`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d790d66a08

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

Comment 7 Fedora Update System 2026-05-16 01:08:32 UTC
FEDORA-2026-164a1e3151 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-2026-164a1e3151`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-164a1e3151

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

Comment 8 Fedora Update System 2026-05-16 01:31:09 UTC
FEDORA-2026-53196fc291 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-2026-53196fc291`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-53196fc291

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

Comment 9 Fedora Update System 2026-05-19 02:05:53 UTC
FEDORA-2026-d790d66a08 has been pushed to the Fedora 42 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-d790d66a08`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d790d66a08

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

Comment 10 Fedora Update System 2026-05-19 02:24:06 UTC
FEDORA-2026-53196fc291 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-2026-53196fc291`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-53196fc291

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

Comment 11 Fedora Update System 2026-05-19 02:43:53 UTC
FEDORA-2026-164a1e3151 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-2026-164a1e3151`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-164a1e3151

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

Comment 12 Fedora Update System 2026-05-27 00:52:20 UTC
FEDORA-2026-53196fc291 (haproxy-3.0.23-2.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 13 Fedora Update System 2026-05-27 01:12:14 UTC
FEDORA-2026-d790d66a08 (haproxy-3.0.23-2.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 14 Fedora Update System 2026-05-27 01:26:39 UTC
FEDORA-2026-164a1e3151 (haproxy-3.0.23-2.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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