Bug 2449470 - CVE-2026-32874 python-ujson: UltraJSON: Denial of Service due to memory leak when parsing large integers [epel-9]
Summary: CVE-2026-32874 python-ujson: UltraJSON: Denial of Service due to memory leak ...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: python-ujson
Version: epel9
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: kushaldas@gmail.com
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["8ccf21d3-d9f5-4c7b-ad34-e...
Depends On:
Blocks: CVE-2026-32874
TreeView+ depends on / blocked
 
Reported: 2026-03-20 06:43 UTC by Sandipan Roy
Modified: 2026-03-29 00:42 UTC (History)
4 users (show)

Fixed In Version: python-ujson-5.8.0-2.el9
Clone Of:
Environment:
Last Closed: 2026-03-29 00:42:32 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Sandipan Roy 2026-03-20 06:43:45 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 Ben Beasley 2026-03-20 07:02:46 UTC
More details in https://www.cve.org/CVERecord?id=CVE-2026-32874 and https://github.com/ultrajson/ultrajson/security/advisories/GHSA-wgvc-ghv9-3pmm; fixed in 5.12.0 with https://github.com/ultrajson/ultrajson/commit/4baeb950df780092bd3c89fc702a868e99a3a1d2.

We can’t update python-ujson past 5.8.0 in EPEL9 because 5.9.0, https://github.com/ultrajson/ultrajson/releases/tag/5.9.0, contained a breaking change. However, it looks like it will be possible to cleanly backport the commit that fixes this particular defect.

Comment 2 Fedora Update System 2026-03-20 07:18:50 UTC
FEDORA-EPEL-2026-37ef30e238 (python-ujson-5.8.0-2.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-37ef30e238

Comment 3 Fedora Update System 2026-03-21 01:23:49 UTC
FEDORA-EPEL-2026-37ef30e238 has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-37ef30e238

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

Comment 4 Fedora Update System 2026-03-29 00:42:32 UTC
FEDORA-EPEL-2026-37ef30e238 (python-ujson-5.8.0-2.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.


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