CVE-2026-25243
An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.66%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution. A workaround is to restrict access to the RESTORE command with ACL rules. This is patched in version 8.6.3.
- CVSS 4.0
- 7.7 HIGHCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/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/M
- EPSS
- 3.66% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-122
- Affected
- redis/redis
- Source
- security-advisories@github.com
References
- https://github.com/redis/redis/releases/tag/8.6.3Release Notes
- https://github.com/redis/redis/security/advisories/GHSA-c8h9-259x-jff4Mitigation, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:14316
- https://access.redhat.com/errata/RHSA-2026:23229
- https://access.redhat.com/errata/RHSA-2026:25216
- https://access.redhat.com/errata/RHSA-2026:25219
- https://access.redhat.com/errata/RHSA-2026:25925
- https://access.redhat.com/errata/RHSA-2026:26008
- https://access.redhat.com/errata/RHSA-2026:26233
- https://access.redhat.com/errata/RHSA-2026:26306
- https://access.redhat.com/errata/RHSA-2026:26540
- https://access.redhat.com/errata/RHSA-2026:27716
- https://access.redhat.com/errata/RHSA-2026:27787
- https://access.redhat.com/errata/RHSA-2026:28139
- https://access.redhat.com/errata/RHSA-2026:28142
- https://access.redhat.com/errata/RHSA-2026:29817
- https://access.redhat.com/errata/RHSA-2026:33427
- https://access.redhat.com/security/cve/CVE-2026-25243
- https://bugzilla.redhat.com/show_bug.cgi?id=2466828
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25243.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.