CVE-2026-92925

Redis: redis: out-of-bounds read via crafted cluster bus packets

Published Sep 17, 2026 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
A flaw was found in Redis community. The cluster bus packet parser, responsible for handling PING, PONG, and MEET packets, fails to properly validate string-carrying extensions for null-termination. This oversight allows a remote attacker to craft a malicious packet, leading to an out-of-bounds read when the packet's payload is processed. Successful exploitation of this vulnerability could result in the disclosure of sensitive information or a remote denial of service (DoS).

Remediation

Vendor Workaround

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.

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4794-1 redis security update
History
Type Values Removed Values Added
First Time appeared Redhat 3scale
CPEs cpe:/a:redhat:red_hat_3scale_amp:2
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
cpe:/a:redhat:3scale:2.13
cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
Vendors & Products Redhat red Hat 3scale Amp
Redhat 3scale
Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:10.1
References
Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:9::appstream
References
Type Values Removed Values Added
First Time appeared Redhat rhel Eus
CPEs cpe:/a:redhat:rhel_eus:9.6::appstream
Vendors & Products Redhat rhel Eus
References
Type Values Removed Values Added
First Time appeared Redhat rhel E4s
CPEs cpe:/a:redhat:rhel_e4s:9.4::appstream
Vendors & Products Redhat rhel E4s
References
Type Values Removed Values Added
First Time appeared Red Hat
Red Hat pen Drive Powered By Red Hat Lightspeed
Red Hat red Hat Openshift Ai (rhoai)
Redhat 3scale Api Management Platform
Redhat ai Inference Server
Redhat ansible Automation Platform
Redhat confidential Compute Attestation
Redhat connectivity Link
Redhat enterprise Linux Ai
Redhat logging Subsystem For Red Hat Openshift
Redhat openshift Container Platform
Redhat openshift Update Service
Redhat openstack Platform
Redhat quay 3
Redhat red Hat Developer Hub
Redhat satellite 6
Redhat update Infrastructure
Vendors & Products Red Hat
Red Hat pen Drive Powered By Red Hat Lightspeed
Red Hat red Hat Openshift Ai (rhoai)
Redhat 3scale Api Management Platform
Redhat ai Inference Server
Redhat ansible Automation Platform
Redhat confidential Compute Attestation
Redhat connectivity Link
Redhat enterprise Linux Ai
Redhat logging Subsystem For Red Hat Openshift
Redhat openshift Container Platform
Redhat openshift Update Service
Redhat openstack Platform
Redhat quay 3
Redhat red Hat Developer Hub
Redhat satellite 6
Redhat update Infrastructure
Type Values Removed Values Added
First Time appeared Redhat enterprise Linux
Redhat hummingbird
CPEs cpe:/a:redhat:hummingbird:1
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat enterprise Linux
Redhat hummingbird
Type Values Removed Values Added
CPEs cpe:/a:redhat:openstack:18.0
cpe:/a:redhat:rhui:5::el9
Vendors & Products Redhat openstack
Redhat rhui
Type Values Removed Values Added
CPEs cpe:/a:redhat:ai_inference_server:3
cpe:/a:redhat:ansible_automation_platform:2
cpe:/a:redhat:confidential_compute_attestation:1
cpe:/a:redhat:connectivity_link:1
cpe:/a:redhat:enterprise_linux_ai:3
cpe:/a:redhat:logging:6
cpe:/a:redhat:openshift:4
cpe:/a:redhat:openshift_ai
cpe:/a:redhat:openshift_update_service:5
cpe:/a:redhat:openstack:16.2
cpe:/a:redhat:openstack:17.1
cpe:/a:redhat:quay:3
cpe:/a:redhat:rhdh:1
cpe:/a:redhat:satellite:6
Vendors & Products Redhat ai Inference Server
Redhat ansible Automation Platform
Redhat confidential Compute Attestation
Redhat connectivity Link
Redhat enterprise Linux Ai
Redhat logging
Redhat openshift
Redhat openshift Ai
Redhat openshift Update Service
Redhat quay
Redhat rhdh
Redhat satellite
Type Values Removed Values Added
Metrics cvssV4_0

{'score': 6.0, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X'}

Type Values Removed Values Added
Description In Redis community the cluster bus PING/PONG/MEET packet parser validated extension padding and total length but never checked that string-carrying extensions are properly null-terminated, allowing a crafted packet to trigger out-of-bounds reads when the payload is later consumed as a C string. This vulnerability can potentially lead to loss of confidentiality or remote denial of service. Redis Software / Redis Enterprise are not affected by this issue. A flaw was found in Redis community. The cluster bus packet parser, responsible for handling PING, PONG, and MEET packets, fails to properly validate string-carrying extensions for null-termination. This oversight allows a remote attacker to craft a malicious packet, leading to an out-of-bounds read when the packet's payload is processed. Successful exploitation of this vulnerability could result in the disclosure of sensitive information or a remote denial of service (DoS).
Title Out-of-Bounds Read in Cluster Bus Redis: redis: out-of-bounds read via crafted cluster bus packets
First Time appeared Redhat
Redhat ai Inference Server
Redhat ansible Automation Platform
Redhat confidential Compute Attestation
Redhat connectivity Link
Redhat enterprise Linux Ai
Redhat logging
Redhat openshift
Redhat openshift Ai
Redhat openshift Update Service
Redhat openstack
Redhat pdrive Lightspeed
Redhat quay
Redhat red Hat 3scale Amp
Redhat rhdh
Redhat rhui
Redhat satellite
CPEs cpe:/a:redhat:ai_inference_server:3
cpe:/a:redhat:ansible_automation_platform:2
cpe:/a:redhat:confidential_compute_attestation:1
cpe:/a:redhat:connectivity_link:1
cpe:/a:redhat:enterprise_linux_ai:3
cpe:/a:redhat:logging:6
cpe:/a:redhat:openshift:4
cpe:/a:redhat:openshift_ai
cpe:/a:redhat:openshift_update_service:5
cpe:/a:redhat:openstack:16.2
cpe:/a:redhat:openstack:17.1
cpe:/a:redhat:openstack:18.0
cpe:/a:redhat:pdrive_lightspeed:1
cpe:/a:redhat:quay:3
cpe:/a:redhat:red_hat_3scale_amp:2
cpe:/a:redhat:rhdh:1
cpe:/a:redhat:rhui:5::el9
cpe:/a:redhat:satellite:6
Vendors & Products Redhat
Redhat ai Inference Server
Redhat ansible Automation Platform
Redhat confidential Compute Attestation
Redhat connectivity Link
Redhat enterprise Linux Ai
Redhat logging
Redhat openshift
Redhat openshift Ai
Redhat openshift Update Service
Redhat openstack
Redhat pdrive Lightspeed
Redhat quay
Redhat red Hat 3scale Amp
Redhat rhdh
Redhat rhui
Redhat satellite
References
Metrics cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}

cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H'}

cvssV4_0

{'score': 6.0, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description In Redis community the cluster bus PING/PONG/MEET packet parser validated extension padding and total length but never checked that string-carrying extensions are properly null-terminated, allowing a crafted packet to trigger out-of-bounds reads when the payload is later consumed as a C string. This vulnerability can potentially lead to loss of confidentiality or remote denial of service. Redis Software / Redis Enterprise are not affected by this issue.
Title Out-of-Bounds Read in Cluster Bus
Weaknesses CWE-125
References
Metrics cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}