CVE-2026-81934: redis Use After Free
CVSS: 7.5v4.0HighAwaiting analysis
AliasesSUSE-SU-2026:3990-1SUSE-SU-2026:3991-1SUSE-SU-2026:4068-1SUSE-SU-2026:4069-1UBUNTU-CVE-2026-81934DEBIAN-CVE-2026-81934
Published 27-08-2026Last modified 31-08-2026
Vulnerability summary
CVE-2026-81934 is a high (CVSS 7.5) Use After Free vulnerability in redis. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 40% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v4.0 (CVE.org)EPSS score
0.48%
0%100%
Low · +0.04 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 12 · Related 1Timeline
- 27-08-2026PublishedVulnerability first disclosed.
- 31-08-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
7 scores · 4 sources · 2 versionsHigh 7.5Preferred score · CVE.org (CNA)
CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:4.0/AV:A/AC:H/AT:P/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVDNIST7.5HighCVSS:4.0/AV:A/AC:H/AT:P/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
High 7.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.1HighCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.48%
Chance of exploitation in the next 30 days
Percentile
40%
Versus all other CVEs
30-day change
+0.04 pp
From 0.43% on 19-09-2026
19-09-202619-10-2026
EPSS score0.48%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundPocs
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Suse16 products
- redis7&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS< 7.0.8-150500.3.37.1
- redis7&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS< 7.0.8-150500.3.37.1
- redis7&distro=SUSE Linux Enterprise Server 15 SP5-LTSS< 7.0.8-150500.3.37.1
- redis7&distro=SUSE Linux Enterprise Server 15 SP6-LTSS< 7.0.8-150600.8.31.1
- redis7&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP5< 7.0.8-150500.3.37.1
Redis2 products
- redis< 8.8.2 | < 8.2.9 | < 8.4.6 | < 8.6.6 | < 8.10.1 | < 7.4.11 | < 6.2.24 | < 7.2.16
- redis software (enterprise)< 8.2.0-46 | < 8.0.20-96 | < 7.22.2-179 | < 7.8.6-303
Debian1 product
- redis< 5:7.0.15-1~deb12u10 | < 5:8.0.2-3+deb13u3 | < 5:8.0.6-3
Ubuntu1 product
- redis< 5:6.0.16-1ubuntu1.2 | < 5:7.0.15-1ubuntu0.24.04.5 | < 5:8.0.5-1ubuntu0.1
4 vendors · 20 products
References
33 links- github.com/redis/redis/releases/tag/6.2.24Release Notes
Show all 33 references
- github.com/redis/redis/releases/tag/7.2.16Release Notes
- github.com/redis/redis/releases/tag/7.4.11Release Notes
- github.com/redis/redis/releases/tag/8.4.6Release Notes
- github.com/redis/redis/releases/tag/8.2.9Release Notes
- github.com/redis/redis/releases/tag/8.6.6Release Notes
- github.com/redis/redis/releases/tag/8.8.2Release Notes
- github.com/redis/redis/releases/tag/8.10.1Release Notes
