Stack Buffer Overflow in Apache Lucy Library
CVE-2026-61486 Published on August 5, 2026
Apache Lucy: stack-buffer-overflow in JSON parser error reporter on malformed input
** UNSUPPORTED WHEN ASSIGNED ** Stack-based Buffer Overflow vulnerability in Apache Lucy.
This issue affects Apache Lucy: all versions.
As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users.
NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
Vulnerability Analysis
CVE-2026-61486 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2026-61486 has been classified to as a Stack Overflow vulnerability or weakness.
Affected Versions
Apache Software Foundation Apache Lucy:- Before and including * is affected.