Bug 2513051 - CVE-2026-32327 apr-util: APR-util: Denial of Service via XML stack recursion attack [fedora-all]
Summary: CVE-2026-32327 apr-util: APR-util: Denial of Service via XML stack recursion ...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: apr-util
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Luboš Uhliarik
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["0f29dcad-9952-415d-8462-3...
Depends On:
Blocks: CVE-2026-32327
TreeView+ depends on / blocked
 
Reported: 2026-08-10 09:19 UTC by Vladimir Vasilev
Modified: 2026-08-26 01:02 UTC (History)
4 users (show)

Fixed In Version: apr-util-1.6.5-1.fc44 apr-util-1.6.5-1.fc43
Clone Of:
Environment:
Last Closed: 2026-08-13 00:56:36 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Vladimir Vasilev 2026-08-10 09:19:12 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.

A bug in APR-util version 1.6.3 (and earlier) allows a stack recursion attack against any library consumer which parses XML from untrusted sources and uses the apr_xml_quote_elem() function.

Users are recommended to upgrade to version 1.6.4, which fixes this issue.

Comment 1 Fedora Update System 2026-08-10 16:22:48 UTC
FEDORA-2026-edfb6293ee (apr-util-1.6.5-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-edfb6293ee

Comment 2 Fedora Update System 2026-08-10 16:22:52 UTC
FEDORA-2026-1ba2df871e (apr-util-1.6.5-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-1ba2df871e

Comment 3 Fedora Update System 2026-08-11 03:38:32 UTC
FEDORA-2026-edfb6293ee 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-edfb6293ee`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-edfb6293ee

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

Comment 4 Fedora Update System 2026-08-11 03:57:35 UTC
FEDORA-2026-1ba2df871e 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-2026-1ba2df871e`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-1ba2df871e

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

Comment 5 Fedora Update System 2026-08-13 00:56:36 UTC
FEDORA-2026-edfb6293ee (apr-util-1.6.5-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Fedora Update System 2026-08-26 01:02:24 UTC
FEDORA-2026-1ba2df871e (apr-util-1.6.5-1.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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