Bug 2514606

Summary:	CVE-2026-66373 valkey: Redis: Remote Code Execution via specially crafted RESTORE payload [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Laura Pardo <lpardo>
Component:	valkey	Assignee:	Jonathan Wright <jonathan>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	rawhide	CC:	db-sig, epel-packagers-sig, fedora, jonathan, nathans, ngompa13, pkhartsk
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["182d0ea9-f825-4585-a94e-82e094b7668f"]}
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2506985

Description Laura Pardo 2026-08-12 13:30:44 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.

Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.