Valkey Affected by RESP Protocol Injection via Lua error_reply

Summary

CVE	CVE-2025-67733
State	PUBLISHED
Assigner	GitHub_M
Source Priority	CVE Program / NVD first with legacy fallback
Published	2026-02-23 20:28:53 UTC
Updated	2026-07-15 02:17:49 UTC
Description	Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious user can use scripting commands to inject arbitrary information into the response stream for the given client, potentially corrupting or returning tampered data to other users on the same connection. The error handling code for lua scripts does not properly handle null characters. Versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12 fix the issue.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Problem Types: CWE-74 | CWE-170 | CWE-74 CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') | CWE-170 Improper Null Termination

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	7.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H`
3.1	ADP	CVSS	7.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H`
3.1	[email protected]	Secondary	8.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H`
3.1	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	Secondary	7.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H`
3.1	CNA	DECLARED	8.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H`

CVSS v3.1 Breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Application	Lfprojects	Valkey	All	All	All	All

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Valkey-io	Valkey	affected < 7.2.12	Not specified
CNA	Valkey-io	Valkey	affected >= 8.0.0, < 8.0.7	Not specified
CNA	Valkey-io	Valkey	affected >= 8.1.0, < 8.1.6	Not specified
CNA	Valkey-io	Valkey	affected >= 9.0.0, < 9.0.2	Not specified
ADP	Red Hat	Red Hat Enterprise Linux 10	unaffected 0:8.0.7-1.el10_1 * rpm	Not specified
ADP	Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	unaffected 0:8.0.7-1.el10_0 * rpm	Not specified
ADP	Red Hat	Red Hat Enterprise Linux 9	unaffected 0:8.0.7-1.el9_7 * rpm	Not specified

References

Reference	Source	Link	Tags
bugzilla.redhat.com/show_bug.cgi	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	bugzilla.redhat.com
security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-67733.json	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	security.access.redhat.com
access.redhat.com/errata/RHSA-2026:3443	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	access.redhat.com
access.redhat.com/security/cve/CVE-2025-67733	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	access.redhat.com
github.com/valkey-io/valkey/security/advisories/GHSA-p876-p7q5-hv2m	[email protected]	github.com	Vendor Advisory
access.redhat.com/errata/RHSA-2026:3507	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	access.redhat.com
access.redhat.com/errata/RHSA-2026:5445	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	access.redhat.com
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

Additional Advisory Data

Source	Time	Event
ADP	2026-02-23T21:03:05.837Z	Reported to Red Hat.
ADP	2026-02-23T19:39:29.136Z	Made public.

Solutions

ADP: RHSA-2026:5445: Red Hat Enterprise Linux AppStream EUS (v. 10.0)

ADP: RHSA-2026:3443: Red Hat Enterprise Linux AppStream (v. 10)

ADP: RHSA-2026:3507: Red Hat Enterprise Linux AppStream (v. 9)

Workarounds

ADP: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

There are currently no legacy QID mappings associated with this CVE.