CVE-2026-81934
Redis TLS pending-data list use-after-free
02 Description
Redis TLS pending-data list use-after-free
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.47% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 41.0% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS: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
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-08-31.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-27 19:40Z2 MO AGO
- Last updated
- 2026-08-31 19:17Z1 MO AGO
- Reserved
- 2026-08-27
- Assigning CNA
- cisa-cg
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.2
- Document digest
- 1f8d17daec8daf58a72996a50325ed3421c95f5ea7593ac92aad2d411663cfc9
05 Affected products
06 References
- github.comurlhttps://github.com/redis/redis/commit/6d088c335d5c3ec49a6c28486140b498e70b7834
- github.comurlhttps://github.com/v12-security/pocs/tree/main/redis/server_ssl
- raw.githubusercontent.comurlhttps://raw.githubusercontent.com/redis/redis/8.2/00-RELEASENOTES
- raw.githubusercontent.comurlhttps://raw.githubusercontent.com/redis/redis/8.4/00-RELEASENOTES
- raw.githubusercontent.comurlhttps://raw.githubusercontent.com/redis/redis/8.6/00-RELEASENOTES
- raw.githubusercontent.comurlhttps://raw.githubusercontent.com/redis/redis/8.8/00-RELEASENOTES
- raw.githubusercontent.comurlhttps://raw.githubusercontent.com/redis/redis/8.10/00-RELEASENOTES
- raw.githubusercontent.comurlhttps://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-239-01.json
- www.cve.orgurlhttps://www.cve.org/CVERecord?id=CVE-2026-81934
- github.comurlhttps://github.com/redis/redis/releases/tag/6.2.24
- github.comurlhttps://github.com/redis/redis/releases/tag/7.2.16
- github.comurlhttps://github.com/redis/redis/releases/tag/7.4.11
- github.comurlhttps://github.com/redis/redis/releases/tag/8.4.6
- github.comurlhttps://github.com/redis/redis/releases/tag/8.2.9
- github.comurlhttps://github.com/redis/redis/releases/tag/8.6.6
- github.comurlhttps://github.com/redis/redis/releases/tag/8.8.2
- github.comurlhttps://github.com/redis/redis/releases/tag/8.10.1
- redis.iourlhttps://redis.io/docs/latest/operate/rs/release-notes/rs-8-2-releases/rs-8-2-0-46/
- redis.iourlhttps://redis.io/docs/latest/operate/rs/release-notes/rs-8-0-releases/rs-8-0-20-96/
- redis.iourlhttps://redis.io/docs/latest/operate/rs/release-notes/rs-7-22-releases/rs-7-22-2-179/
- redis.iourlhttps://redis.io/docs/latest/operate/rs/release-notes/rs-7-8-releases/rs-7-8-6-303/
- raw.githubusercontent.comurlhttps://raw.githubusercontent.com/redis/redis/7.4/00-RELEASENOTES
- raw.githubusercontent.comurlhttps://raw.githubusercontent.com/redis/redis/7.2/00-RELEASENOTES
- raw.githubusercontent.comurlhttps://raw.githubusercontent.com/redis/redis/6.2/00-RELEASENOTES
07 Fixed in
AlmaLinux 8
- redis Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af
- redis-devel Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af
- redis-doc Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- redis Fixed in 6.2.24-1.el9_8
- redis-devel Fixed in 6.2.24-1.el9_8
- redis-doc Fixed in 6.2.24-1.el9_8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- redis Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af
- redis-devel Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af
- redis-doc Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- redis Fixed in 6.2.24-1.el9_8
- redis-devel Fixed in 6.2.24-1.el9_8
- redis-doc Fixed in 6.2.24-1.el9_8
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- redis Fixed in 5:7.0.15-1~deb12u10
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- redis Fixed in 5:8.0.2-3+deb13u3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- redis Fixed in 5:8.0.6-3
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- redis Fixed in 5:6.0.16-1ubuntu1.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- redis Fixed in 5:7.0.15-1ubuntu0.24.04.5
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- redis Fixed in 5:8.0.5-1ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.