Stack-based Buffer Overflow Affecting oj package, versions <3.17.3
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RUBY-OJ-17393938
- published22 Jun 2026
- disclosed19 Jun 2026
- creditZheng Yu, yuhang-lab
Introduced: 19 Jun 2026
NewCVE-2026-54502 (opens in a new tab)How to fix?
Upgrade oj to version 3.17.3 or higher.
Overview
Affected versions of this package are vulnerable to Stack-based Buffer Overflow via the fill_indent function when a very large value is provided to the indent option. An attacker can cause a crash by supplying an excessively large integer value, resulting in a stack buffer overflow during serialization.