Bug 2487466

Summary:	CVE-2026-6811 php-pecl-mongodb: MongoDB PHP driver: Denial of Service due to stack exhaustion when processing deeply nested BSON documents [epel-all]
Product:	[Fedora] Fedora EPEL	Reporter:	Vipul Nair <vinair>
Component:	php-pecl-mongodb	Assignee:	Remi Collet <fedora>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	epel9	CC:	fedora
Target Milestone:	---	Keywords:	Reopened, Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["1db2bfe5-9e0e-4f95-a291-373f6e75fd9a"]}
Fixed In Version:	php-pecl-mongodb-1.20.1-2.el9	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-06-19 00:49:03 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:	2477725

Description Vipul Nair 2026-06-10 11:22:41 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 Remi Collet 2026-06-10 13:23:52 UTC

Upstream tracker: https://jira.mongodb.org/browse/PHPC-2636
Commit: https://github.com/mongodb/mongo-php-driver/commit/2060beb85a041182550d022ec223783ffdaf6ec8

Fixed in 1.21.5 and 2.1.8

Comment 2 Remi Collet 2026-06-10 13:44:07 UTC

EPEL-9 has php-pecl-mongodb 1.20.1 which is affected.

Fixed by https://src.fedoraproject.org/rpms/php-pecl-mongodb/c/91e826694628a267054b38bf40c72287d2ca0e66?branch=epel9

Comment 3 Fedora Update System 2026-06-10 13:58:43 UTC

FEDORA-EPEL-2026-8112fc6e20 (php-pecl-mongodb-1.20.1-2.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-8112fc6e20

Comment 4 Fedora Update System 2026-06-11 00:54:51 UTC

FEDORA-EPEL-2026-8112fc6e20 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-2026-8112fc6e20

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

Comment 5 Fedora Update System 2026-06-19 00:49:03 UTC

FEDORA-EPEL-2026-8112fc6e20 (php-pecl-mongodb-1.20.1-2.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.