CVE-2026-25243
redis-server RESTORE invalid memory access may allow remote code execution
Description
Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution. A workaround is to restrict access to the RESTORE command with ACL rules. This is patched in version 8.6.3.
INFO
Published Date :
May 5, 2026, 5:17 p.m.
Last Modified :
May 6, 2026, 4:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Redis server to version 8.6.3 or later.
- Restrict access to the RESTORE command using ACL rules.
Public PoC/Exploit Available at Github
CVE-2026-25243 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-25243.
| URL | Resource |
|---|---|
| https://github.com/redis/redis/releases/tag/8.6.3 | Release Notes |
| https://github.com/redis/redis/security/advisories/GHSA-c8h9-259x-jff4 | Mitigation Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-25243 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-25243
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Desc "Fix Redis CVE ultil 20260508-10h51 GMT+7"
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-25243 vulnerability anywhere in the article.
-
CybersecurityNews
Critical Redis Vulnerabilities Enables Remote Code Execution Attacks
Five dangerous vulnerabilities in Redis expose Redis Cloud, Redis Software, and all open-source community editions to potential remote code execution, giving authenticated attackers a direct path to c ... Read more
The following table lists the changes that have been made to the
CVE-2026-25243 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 06, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* versions up to (excluding) 8.6.3 Added Reference Type GitHub, Inc.: https://github.com/redis/redis/releases/tag/8.6.3 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/redis/redis/security/advisories/GHSA-c8h9-259x-jff4 Types: Mitigation, Vendor Advisory -
New CVE Received by [email protected]
May. 05, 2026
Action Type Old Value New Value Added Description Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution. A workaround is to restrict access to the RESTORE command with ACL rules. This is patched in version 8.6.3. Added CVSS V4.0 AV:N/AC:H/AT:N/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 Added CWE CWE-122 Added Reference https://github.com/redis/redis/releases/tag/8.6.3 Added Reference https://github.com/redis/redis/security/advisories/GHSA-c8h9-259x-jff4