CVE-2026-61486

Modified Modified - Updated After Analysis

Stack-based Buffer Overflow in Apache Lucy

Publication date: 2026-08-05

Last updated on: 2026-09-04

Assigner: Apache Software Foundation

Description

** 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. Lucy is now maintained outside of the ASF at https://github.com/lucysearch . This issue has been fixed in 0.8.0 there. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-05

Last Modified

2026-09-04

Generated

2026-09-15

AI Q&A

2026-08-05

EPSS Evaluated

2026-09-14

NVD

CVE-2026-61486

EUVD

EUVD-2026-53191

Affected Vendors & Products

Vendor	Product	Version / Range
apache	lucy	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-121	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).

Attack-Flow Graph

Executive Summary

This is a stack-based buffer overflow vulnerability in Apache Lucy, a retired search library. The flaw allows attackers to overwrite memory on the stack, potentially leading to arbitrary code execution or crashes. Since Apache Lucy is no longer supported, no official fix will be released.

Detection Guidance

Since Apache Lucy is unsupported and retired, detection is not recommended. The project has no fixes and users are advised to find alternatives or restrict access to trusted users only.

Impact Analysis

If you are still using Apache Lucy, an attacker could exploit this flaw to execute malicious code on your system or cause denial-of-service conditions. The risk is limited to environments where Lucy is still deployed despite being unsupported.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR or HIPAA as it pertains to an unsupported and retired software project. Apache Lucy is no longer maintained, so standard security practices would recommend discontinuing its use rather than addressing compliance gaps.

Mitigation Strategies

Immediately stop using Apache Lucy as it is unsupported. Migrate to an alternative solution and restrict access to the instance to trusted users only.

Hi! I’m here to help you understand CVE-2026-61486. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70