CVE-2026-32829
7.5 · HIGHOverview
CVE-2026-32829 is a high-severity vulnerability affecting pseitz lz4_flex. It was published on March 20, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
lz4_flex is a pure Rust implementation of LZ4 compression/decompression. In versions 0.11.5 and below, and 0.12.0, decompressing invalid LZ4 data can leak sensitive information from uninitialized memory or from previous decompression operations. The library fails to properly validate offset values during LZ4 "match copy operations," allowing out-of-bounds reads from the output buffer. The block-based API functions (`decompress_into`, `decompress_into_with_dict`, and others when `safe-decode` is disabled) are affected, while all frame APIs are unaffected. The impact is potential exposure of sensitive data and secrets through crafted or malformed LZ4 input. This issue has been fixed in versions 0.11.6 and 0.12.1.
Remediation
Check the references section for vendor advisories and patches from pseitz. Update lz4_flex to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| pseitz | lz4_flex | >= 0, < 0.11.6 | Affected |
References
Frequently Asked Questions
What is CVE-2026-32829?
CVE-2026-32829 is a high-severity vulnerability affecting pseitz lz4_flex. It was published on March 20, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-32829?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-32829?
Check the references section for vendor advisories and patches from pseitz. Update lz4_flex to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-32829?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-32829 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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