Bug 2439563

Summary: CVE-2026-2391 nextcloud: qs's arrayLimit bypass in comma parsing allows denial of service [fedora-42]
Product: [Fedora] Fedora Reporter: Jon Moroney <jmoroney>
Component: nextcloudAssignee: Andrew Bauer <zonexpertconsulting>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 42CC: zonexpertconsulting
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["4a358cb9-8ba0-450b-a156-3f1ac3210248"]}
Fixed In Version: nextcloud-33.0.1-1.el10_1 nextcloud-33.0.1-1.fc43 nextcloud-33.0.1-1.fc42 nextcloud-33.0.1-1.el10_2 nextcloud-33.0.1-1.el10_3 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-04-07 00:24:33 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2439353    

Description Jon Moroney 2026-02-12 22:15:07 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 2026-03-29 21:13:57 UTC
FEDORA-2026-ca43aa006f (nextcloud-33.0.1-1.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-ca43aa006f

Comment 2 Fedora Update System 2026-03-29 21:14:23 UTC
FEDORA-EPEL-2026-35986c0192 (nextcloud-33.0.1-1.el10_1) has been submitted as an update to Fedora EPEL 10.1.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-35986c0192

Comment 3 Fedora Update System 2026-03-30 18:04:08 UTC
FEDORA-2026-0dc1d7ff6d 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-2026-0dc1d7ff6d`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-0dc1d7ff6d

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

Comment 4 Fedora Update System 2026-03-30 18:24:51 UTC
FEDORA-2026-ca43aa006f 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-ca43aa006f`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-ca43aa006f

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

Comment 5 Fedora Update System 2026-03-30 18:33:37 UTC
FEDORA-EPEL-2026-35986c0192 has been pushed to the Fedora EPEL 10.1 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-35986c0192

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

Comment 6 Fedora Update System 2026-03-30 18:51:40 UTC
FEDORA-2026-1dcec03247 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-2026-1dcec03247`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-1dcec03247

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

Comment 7 Fedora Update System 2026-03-30 19:01:18 UTC
FEDORA-EPEL-2026-3168beb980 has been pushed to the Fedora EPEL 10.2 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-3168beb980

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

Comment 8 Fedora Update System 2026-03-30 19:10:32 UTC
FEDORA-EPEL-2026-3a5e035c94 has been pushed to the Fedora EPEL 10.3 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-3a5e035c94

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

Comment 9 Fedora Update System 2026-04-07 00:24:33 UTC
FEDORA-EPEL-2026-35986c0192 (nextcloud-33.0.1-1.el10_1) has been pushed to the Fedora EPEL 10.1 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2026-04-07 00:50:31 UTC
FEDORA-2026-0dc1d7ff6d (nextcloud-33.0.1-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 11 Fedora Update System 2026-04-07 01:10:32 UTC
FEDORA-2026-ca43aa006f (nextcloud-33.0.1-1.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 12 Fedora Update System 2026-04-07 01:21:58 UTC
FEDORA-EPEL-2026-3168beb980 (nextcloud-33.0.1-1.el10_2) has been pushed to the Fedora EPEL 10.2 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 13 Fedora Update System 2026-04-07 01:37:07 UTC
FEDORA-EPEL-2026-3a5e035c94 (nextcloud-33.0.1-1.el10_3) has been pushed to the Fedora EPEL 10.3 stable repository.
If problem still persists, please make note of it in this bug report.