Bug 2543057

Summary:	CVE-2026-88358 simdjson: simdjson: Denial of Service via crafted truncated JSON document [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	TEJ RATHI <trathi>
Component:	simdjson	Assignee:	Ali Erdinc Koroglu <ali.koroglu>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	epel10	CC:	ali.koroglu, orion
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["7d72d9dd-80fe-4035-8e7b-78bc890bf9c8"]}
Fixed In Version:	simdjson-5.0.1-1.el10_3 simdjson-5.0.1-1.el10_4 simdjson-5.0.1-1.el9	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-10-12 00:23:47 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:	2540251

Description TEJ RATHI 2026-09-29 10:48:34 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.

simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.

Comment 1 Fedora Update System 2026-10-02 06:53:36 UTC

FEDORA-EPEL-2026-8a421bf5fb (simdjson-5.0.1-1.el10_4) has been submitted as an update to Fedora EPEL 10.4.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-8a421bf5fb

Comment 2 Fedora Update System 2026-10-02 06:53:36 UTC

FEDORA-EPEL-2026-36f6602332 (simdjson-5.0.1-1.el10_3) has been submitted as an update to Fedora EPEL 10.3.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-36f6602332

Comment 3 Fedora Update System 2026-10-02 06:53:36 UTC

FEDORA-EPEL-2026-01f818d873 (simdjson-5.0.1-1.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-01f818d873

Comment 4 Fedora Update System 2026-10-03 02:21:35 UTC

FEDORA-EPEL-2026-8a421bf5fb has been pushed to the Fedora EPEL 10.4 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-8a421bf5fb

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

Comment 5 Fedora Update System 2026-10-03 02:31:54 UTC

FEDORA-EPEL-2026-36f6602332 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-2026-36f6602332

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

Comment 6 Fedora Update System 2026-10-03 02:38:20 UTC

FEDORA-EPEL-2026-01f818d873 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-2026-01f818d873

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

Comment 7 Fedora Update System 2026-10-12 00:23:47 UTC

FEDORA-EPEL-2026-36f6602332 (simdjson-5.0.1-1.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.

Comment 8 Fedora Update System 2026-10-12 00:23:56 UTC

FEDORA-EPEL-2026-8a421bf5fb (simdjson-5.0.1-1.el10_4) has been pushed to the Fedora EPEL 10.4 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 9 Fedora Update System 2026-10-12 00:35:16 UTC

FEDORA-EPEL-2026-01f818d873 (simdjson-5.0.1-1.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.