CVE-2026-22003 is a difficult-to-exploit vulnerability in the HotSpot component of Oracle Java SE 8u481 and 8u481-b50 and Oracle GraalVM Enterprise Edition 21.3.17. It affects Java client deployments that execute untrusted code in sandboxed Java Web Start applications or Java applets and depend on the Java sandbox for isolation. A low-privileged local attacker can exploit the flaw only with interaction from another person, potentially compromising the affected Java or GraalVM deployment.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository is a small proof-of-concept exploit for CVE-2026-22003, a Redis Lua sandbox escape using `debug.sethook`. The repo contains two code files: a Lua payload (`redis_sandbox.lua`) and a Python trigger (`trigger_redis_sandbox_escape.py`), plus a README and license. The Python script connects to a Redis server using the default `redis.Redis()` client settings, reads the Lua file from disk, and submits it with `r.eval(script, 0)`. The Lua script installs a debug hook with `debug.sethook`, then relies on that hook executing in a privileged context to call `os.execute("id > /tmp/redis_escape")`. The main capability is remote code execution on the Redis host when an attacker can run Lua scripts against a vulnerable Redis instance. There is no interactive shell or customizable payload framework; instead, it provides a hardcoded command execution demonstration by creating `/tmp/redis_escape`. The exploit is operational but minimal, intended to demonstrate sandbox escape and host command execution rather than provide post-exploitation tooling.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability covered by the referenced CentOS 7 TuxCare security advisory; no technical vulnerability details are provided.
A vulnerability addressed by the referenced CentOS 8 TuxCare security update. The notice rates it Moderate and provides a CVSS v3 vector of CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H.
A moderate-severity local vulnerability addressed by a CentOS 8.5 TuxCare security update. The supplied CVSS v3 vector requires local access, low privileges, and user interaction, and can affect integrity and availability.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.