Vulnerability · Published Aug 27, 2026 · Assigned by cisa-cg
CVE-2026-81934Redis TLS pending-data list use-after-free
High 7.1
In plain English
A high-severity use-after-free in Redis from Redis. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.5%top 58.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Redis contains a use-after-free vulnerability in the 'tlsProcessPendingData()' function, which handles the TLS pending-data list if Redis is configured with TLS support. A remote, unauthenticated attacker may be able to execute arbitrary commands with the privileges of the Redis server.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | redis | 6.2.24-1.module_el8.10.0+4271+7f8f19af | ALSA-2026:64823 |
| AlmaLinux:9 | redis | 6.2.24-1.el9_8 | ALSA-2026:64824 |
| AlmaLinux:8 | redis-devel | 6.2.24-1.module_el8.10.0+4271+7f8f19af | ALSA-2026:64823 |
| AlmaLinux:9 | redis-devel | 6.2.24-1.el9_8 | ALSA-2026:64824 |
| AlmaLinux:8 | redis-doc | 6.2.24-1.module_el8.10.0+4271+7f8f19af | ALSA-2026:64823 |
| AlmaLinux:9 | redis-doc | 6.2.24-1.el9_8 | ALSA-2026:64824 |
| Debian:12 | redis | 5:7.0.15-1~deb12u10 | DEBIAN-CVE-2026-81934 |
| Debian:13 | redis | 5:8.0.2-3+deb13u3 | DEBIAN-CVE-2026-81934 |
| Debian:14 | redis | 5:8.0.6-3 | DEBIAN-CVE-2026-81934 |
| Rocky Linux:8 | redis | 0:6.2.24-1.module+el8.10.0+40313+282db117 | RLSA-2026:64823 |
| Rocky Linux:9 | redis | 0:7.2.16-1.module+el9.8.0+40315+e15874a8 | RLSA-2026:65120 |
| Rocky Linux:9 | redis | 0:6.2.24-1.el9_8 | RLSA-2026:64824 |
| Ubuntu:22.04:LTS | redis | 5:6.0.16-1ubuntu1.2 | UBUNTU-CVE-2026-81934 |
| Ubuntu:22.04:LTS | redis | 5:6.0.16-1ubuntu1.2 | USN-8866-1 |
| Ubuntu:24.04:LTS | redis | 5:7.0.15-1ubuntu0.24.04.5 | USN-8866-1 |
| Ubuntu:24.04:LTS | redis | 5:7.0.15-1ubuntu0.24.04.5 | UBUNTU-CVE-2026-81934 |
| Ubuntu:26.04:LTS | redis | 5:8.0.5-1ubuntu0.1 | USN-8866-1 |
| Ubuntu:26.04:LTS | redis | 5:8.0.5-1ubuntu0.1 | UBUNTU-CVE-2026-81934 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Redis | Redis | see references |
| Redis | Redis Software (Enterprise) | 0 – before 8.2.0-460 – before 8.0.20-960 – before 7.22.2-1790 – before 7.8.6-303 |
Weakness: CWE-416 · Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- url patch
- url exploit
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url third-party-advisory
- url vdb-entry
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes
- url release-notes