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.
CVE-2026-66373 is fixed in 6 products on 1 platform, first by DEBIAN-CVE-2026-66373, released August 7, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| redis · Debian 12.15 (bookworm) | 5:7.0.15-1~deb12u9 | DEBIAN-CVE-2026-66373 | Aug 7, 2026 |
| redis · RHEL 8 | 0:6.2.24-1.module+el8.10.0+24746+7b800ac5 | RHSA-2026:64823 | Sep 13, 2026 |
| redis · RHEL 9 | 0:7.2.16-1.module+el9.8.0+24745+654dcf03 | RHSA-2026:65120 | Sep 13, 2026 |
| redis · almalinux 8 | 6.2.24-1.module_el8.10.0+4271+7f8f19af | ALSA-2026:64823 | Sep 8, 2026 |
| redis · almalinux 9 | 6.2.24-1.el9_8 | ALSA-2026:64824 | Sep 8, 2026 |
| redis · ol 8 | 0:6.2.24-1.0.1.module+el8.10.0+91026+eb7a02a1 | ELSA-2026-64823-0 | Sep 9, 2026 |
| redis · ol 9 | 0:7.2.16-1.0.1.module+el9.8.0+91028+45c54649 | ELSA-2026-65120-0 | Sep 9, 2026 |
| redis · rocky 8 | 0:6.2.24-1.module+el8.10.0+40313+282db117 | RLSA-2026:64823 | Sep 9, 2026 |
| redis · rocky 9 | 0:7.2.16-1.module+el9.8.0+40315+e15874a8 | RLSA-2026:65120 | Sep 9, 2026 |
| redis · sles 15.6 | 7.2.4-150600.3.27.1 | SUSE-SU-2026:3638-1 | Aug 18, 2026 |
| redis-devel · RHEL 8 | 0:6.2.24-1.module+el8.10.0+24746+7b800ac5 | RHSA-2026:64823 | Sep 13, 2026 |
| redis-devel · RHEL 9 | 0:7.2.16-1.module+el9.8.0+24745+654dcf03 | RHSA-2026:65120 | Sep 13, 2026 |
| redis-devel · almalinux 8 | 6.2.24-1.module_el8.10.0+4271+7f8f19af | ALSA-2026:64823 | Sep 8, 2026 |
| redis-devel · almalinux 9 | 6.2.24-1.el9_8 | ALSA-2026:64824 | Sep 8, 2026 |
| redis-devel · ol 8 | 0:6.2.24-1.0.1.module+el8.10.0+91026+eb7a02a1 | ELSA-2026-64823-0 | Sep 9, 2026 |
| redis-devel · ol 9 | 0:7.2.16-1.0.1.module+el9.8.0+91028+45c54649 | ELSA-2026-65120-0 | Sep 9, 2026 |
| redis-doc · RHEL 8 | 0:6.2.24-1.module+el8.10.0+24746+7b800ac5 | RHSA-2026:64823 | Sep 13, 2026 |
| redis-doc · RHEL 9 | 0:7.2.16-1.module+el9.8.0+24745+654dcf03 | RHSA-2026:65120 | Sep 13, 2026 |
| redis-doc · almalinux 8 | 6.2.24-1.module_el8.10.0+4271+7f8f19af | ALSA-2026:64823 | Sep 8, 2026 |
| redis-doc · almalinux 9 | 6.2.24-1.el9_8 | ALSA-2026:64824 | Sep 8, 2026 |
| redis-doc · ol 8 | 0:6.2.24-1.0.1.module+el8.10.0+91026+eb7a02a1 | ELSA-2026-64823-0 | Sep 9, 2026 |
| redis-doc · ol 9 | 0:7.2.16-1.0.1.module+el9.8.0+91028+45c54649 | ELSA-2026-65120-0 | Sep 9, 2026 |
| redis7 · sles 15.6 | 7.0.8-150600.8.28.1 | SUSE-SU-2026:3639-1 | Aug 18, 2026 |
| valkey · RHEL 10 | 8.0.11-1.el10_0 | RHSA-2026:68601 | Sep 10, 2026 |
| valkey · RHEL 9 | 0:8.0.10-1.el9_8 | RHSA-2026:64807 | Sep 13, 2026 |
| valkey · almalinux 10 | 8.0.11-1.el10_2 | ALSA-2026:64796 | Sep 8, 2026 |
| valkey · almalinux 9 | 8.0.10-1.el9_8 | ALSA-2026:64807 | Sep 8, 2026 |
| valkey · ol 10 | 0:8.0.11-1.el10_2 | ELSA-2026-64796-0 | Sep 8, 2026 |
| valkey · ol 9 | 0:8.0.10-1.el9_8 | ELSA-2026-64807-0 | Sep 8, 2026 |
| valkey · rocky 10 | 0:8.0.11-1.el10_2 | RLSA-2026:64796 | Sep 9, 2026 |
| valkey · rocky 9 | 0:8.0.10-1.el9_8 | RLSA-2026:64807 | Sep 9, 2026 |
| valkey-devel · RHEL 9 | 0:8.0.10-1.el9_8 | RHSA-2026:64807 | Sep 13, 2026 |
| valkey-devel · almalinux 10 | 8.0.11-1.el10_2 | ALSA-2026:64796 | Sep 8, 2026 |
| valkey-devel · almalinux 9 | 8.0.10-1.el9_8 | ALSA-2026:64807 | Sep 8, 2026 |
| valkey-devel · ol 10 | 0:8.0.11-1.el10_2 | ELSA-2026-64796-0 | Sep 8, 2026 |
| valkey-devel · ol 9 | 0:8.0.10-1.el9_8 | ELSA-2026-64807-0 | Sep 8, 2026 |
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