CVE-2026-25243
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-25243
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-25243.html
Vendor advisory: security-advisories@github.com — https://github.com/redis/redis/security/advisories/GHSA-c8h9-259x-jff4
Vendor advisory: security-advisories@github.com — https://github.com/redis/redis/releases/tag/8.6.3
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | affected | |
| debian | bullseye | affected | |
| debian | forky | affected | |
| debian | sid | affected | |
| debian | trixie | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| redis | redis | {"endExcluding":"8.6.3"} | 8.6.3 |
References
CWEs
CWE-122
Verify integrity in audit chain (admin only). AS-IS.