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Fix Lua remote code execution (CVE-2025-49844, CVE-2025-46819, CVE-2025-46817)) - #918
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Fix CVE-2025-49844
emilseman
approved these changes
Oct 13, 2025
dhemob
approved these changes
Oct 14, 2025
LUA out-of-bound read (CVE-2025-46819)
Fix Lua Library (CVE-2025-46817)
Fix Lua Library (CVE-2025-46817)
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github-merge-queue Bot
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Nov 13, 2025
The keydb package is broken [1], vulnerable [2], and upstream's last release was in October 2023 [3]. [1] https://hydra.nixos.org/build/311470939/nixlog/2 [2] Snapchat/KeyDB#918 [3] https://github.com/Snapchat/KeyDB/releases
KlettIT
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Sep 28, 2026
Security fixes (backported from upstream PRs/issues): - PR Snapchat#918: Fix Lua RCE (CVE-2025-49844, CVE-2025-46819, CVE-2025-46817) - lbaselib.c: safe unpack overflow check - llex.c: skip_sep returns size_t, fixes OOB in long string - lparser.c: fix use-after-free in luaY_parser - ltable.c: simplify luaH_getnum bounds check - PR Snapchat#908: Fix listen before chmod on Unix sockets (CVE-2023-45145) - anet.c: chmod before listen in anetListen() - Issue Snapchat#905: Fix Lua integer overflow (CVE-2024-31449) - lua_bit.c: clamp INT32_MIN in bit_tohex CI changes: - PR Snapchat#789: Fix backtick command substitutions in Dockerfiles - Remove legacy .github/workflows/ci.yml - Add docker-ci.yml: build multi-arch Docker image, push to ghcr.io/KlettIT/keydb with smoke-test, GHA layer cache - Add packages-ci.yml: build deb (Ubuntu 20.04/22.04/24.04, Debian 11/12) and rpm (RHEL 8/9, Fedora 40), upload as artifacts - Add Dockerfile.ci: slim CI Dockerfile using pre-built binaries
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CVE-2025-29844
Redis versions 8.2.1 and below are vulnerable to remote code execution via a specially crafted Lua script that manipulates the garbage collector to trigger use-after-free.
Fixed in version 8.2.2. Workaround: Use ACL to restrict EVAL and EVALSHA commands.
CVE-2025-49844
Reference
CVE-2025-46819
Redis versions 8.2.1 and below allow an authenticated user to use a specially crafted LUA script to read out-of-bound data or crash the server and subsequent denial of service.
CVE-2025-46819
Reference
CVE-2025-46817
Redis versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to cause an integer overflow and potentially lead to remote code execution
CVE-2025-46817
Reference