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USN-8169-1: Redis, Lua vulnerabilities

Ubuntu • April 13, 2026

It was discovered that Redis incorrectly handled certain specially crafted Lua scripts. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue was only addressed in lua5.1 on Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. ( CVE-2025-49844 ) It was discovered that Redis incorrectly handled certain specially crafted Lua scripts. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue was only addressed in lua-bitop on Ubuntu 20.04 LTS and Ubuntu 22.04 LTS and in redis on Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 24.04 LTS. ( CVE-2024-31449 ) Seiya Nakata and Yudai Fujiwara discovered that Redis incorrectly handled certain specially crafted Lua scripts. An attacker could possibly use this issue to cause heap corruption and execute arbitrary code....

It was discovered that Redis incorrectly handled certain specially crafted Lua scripts. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue was only addressed in lua-bitop on Ubuntu 20.04 LTS and Ubuntu 22.04 LTS and in redis on Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 24.04 LTS. ( CVE-2024-31449 )

Seiya Nakata and Yudai Fujiwara discovered that Redis incorrectly handled certain specially crafted Lua scripts. An attacker could possibly use this issue to cause heap corruption and execute arbitrary code. This issue was only addressed in lua-cjson on Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. ( CVE-2022-24834 )

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Critical Redis and Lua Vulnerabilities Affect Multiple Ubuntu Releases A series of vulnerabilities have been identified in Redis and Lua, affecting Ubuntu versions 16.04 to 24.04 LTS. The most critical issue, CVE-2025-49844, allows remote attackers to exploit specially crafted Lua scripts, potentially leading to denial of service or arbitrary code execution. This vulnerability was specifically addressed in lua5.1 for Ubuntu 20.04 and 22.04 LTS. Additionally, CVE-2024-31449 and CVE-2022-24834 also pose risks, with the former affecting Redis across several Ubuntu versions including 16.04 and 18.04 LTS. The vulnerabilities were discovered by researchers Seiya Nakata and Yudai Fujiwara. Users are urged to update their systems to mitigate these risks. The issues are significant due to the widespread use of Redis as a persistent key-value database. Immediate action is recommended to prevent potential exploitation. 2 sources 72

Extracted Entities

USN-8169-1: Redis, Lua vulnerabilities

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Extracted Entities

Companies (1)

CVEs (3)

MITRE ATT&CK (1)

Platforms (1)