cve-2025-49844
CRITICAL vulncheck_kev
Description
Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to manipulate the garbage collector, trigger a use-after-free and potentially lead to remote code execution. The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2. To workaround this issue without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.
Timeline
- Published
- 2025-12-23 00:00 UTC
- Last Modified
- 2025-12-23
CVSS Details
CVSS details not available.
Affected Products
No product information available.
References
No references available.
Linked Vulnerabilities
{
"cvss": 0.0,
"datePublished": "2025-12-23T00:00:00Z",
"dateUpdated": "2025-12-23T00:00:00Z",
"description": "Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to manipulate the garbage collector, trigger a use-after-free and potentially lead to remote code execution. The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2. To workaround this issue without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.",
"dueDate": "",
"id": "CVE-2025-49844",
"kev_catalogs": [
"vulncheck"
],
"knownRansomwareCampaignUse": "Known",
"product": "redis",
"requiredAction": "Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.",
"severity": "CRITICAL",
"source": "vulncheck_kev",
"title": "Redis redis Use After Free",
"vendor": "Redis"
}