CVE-2026-81934
What it is
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.
At a glance
- Exploitability
- Can be exploited from the same network segment with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.5% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.5% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Awaiting Analysis
Attack profile CVSS 4.0 · 7.5
- Attack vector
- Adjacent network
- Complexity
- High
- Attack requirements
- Present
- Privileges needed
- Low
- User interaction
- None
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw 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
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-81934.md and follow it. Check whether this project is affected by CVE-2026-81934. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/redis/redis/commit/6d088c335d5c3ec49a6c28486140b498e70b7834
- https://github.com/redis/redis/releases/tag/6.2.24
- https://github.com/redis/redis/releases/tag/7.2.16
- https://github.com/redis/redis/releases/tag/7.4.11
- https://github.com/redis/redis/releases/tag/8.10.1
- https://github.com/redis/redis/releases/tag/8.2.9
- https://github.com/redis/redis/releases/tag/8.4.6
- https://github.com/redis/redis/releases/tag/8.6.6
- https://github.com/redis/redis/releases/tag/8.8.2
References
- https://github.com/redis/redis/commit/6d088c335d5c3ec49a6c28486140b498e70b7834
- https://github.com/redis/redis/releases/tag/6.2.24
- https://github.com/redis/redis/releases/tag/7.2.16
- https://github.com/redis/redis/releases/tag/7.4.11
- https://github.com/redis/redis/releases/tag/8.10.1
- https://github.com/redis/redis/releases/tag/8.2.9
- https://github.com/redis/redis/releases/tag/8.4.6
- https://github.com/redis/redis/releases/tag/8.6.6
- https://github.com/redis/redis/releases/tag/8.8.2
- https://github.com/v12-security/pocs/tree/main/redis/server_ssl
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-239-01.json
- https://raw.githubusercontent.com/redis/redis/6.2/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/7.2/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/7.4/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.10/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.2/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.4/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.6/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.8/00-RELEASENOTES
- https://redis.io/docs/latest/operate/rs/release-notes/rs-7-22-releases/rs-7-22-2-179/
- https://redis.io/docs/latest/operate/rs/release-notes/rs-7-8-releases/rs-7-8-6-303/
- https://redis.io/docs/latest/operate/rs/release-notes/rs-8-0-releases/rs-8-0-20-96/
- https://redis.io/docs/latest/operate/rs/release-notes/rs-8-2-releases/rs-8-2-0-46/
- https://www.cve.org/CVERecord?id=CVE-2026-81934