CVE-2014-125026: Out-of-bounds write in github.com/cloudflare/golz4

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-12-27 · updated 2026-06-17
Weakness: CWE-787

Description

LZ4 bindings use a deprecated C API that is vulnerable to memory corruption, which could lead to arbitrary code execution if called with untrusted user input.

Affected products

github.com/cloudflare/golz4: before 2014-07-11 — fixed in 2014-07-11

How to fix

Upgrade to a fixed version: github.com/cloudflare/golz4 2014-07-11. Check the vendor advisory for mitigations.

References

https://github.com/cloudflare/golz4/commit/199f5f7878062ca17a98e079f2dbe1205e2ed898
https://github.com/cloudflare/golz4/issues/5
https://pkg.go.dev/vuln/GO-2020-0022
https://github.com/cloudflare/golz4/commit/199f5f7878062ca17a98e079f2dbe1205e2ed898
https://github.com/cloudflare/golz4/issues/5
https://pkg.go.dev/vuln/GO-2020-0022

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