/ 
Lucy-0.6.2
/ Lucy::Docs::Cookbook
Security Advisories (4)
CVE-2026-61484 (2026-08-05)

** UNSUPPORTED WHEN ASSIGNED ** Deserialization of Untrusted Data 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.

CVE-2026-61483 (2026-08-05)

Apache Lucy: QueryParser unbounded recursion on deeply-nested query -> C-stack-overflow DoS ** UNSUPPORTED WHEN ASSIGNED ** Uncontrolled Recursion 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.

CVE-2026-61485 (2026-08-05)

Apache Lucy: Freezer/InStream deserialization bomb - unbounded allocation reading an index ** UNSUPPORTED WHEN ASSIGNED ** Uncontrolled Recursion 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.

CVE-2026-61486 (2026-08-05)

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.

NAME

Lucy::Docs::Cookbook - Apache Lucy recipes

DESCRIPTION

The Cookbook provides thematic documentation covering some of Apache Lucy’s more sophisticated features. For a step-by-step introduction to Lucy, see Tutorial.

Chapters

  • FastUpdates - While index updates are fast on average, worst-case update performance may be significantly slower. To make index updates consistently quick, we must manually intervene to control the process of index segment consolidation.

  • CustomQuery - Explore Lucy’s support for custom query types by creating a “PrefixQuery” class to handle trailing wildcards.

  • CustomQueryParser - Define your own custom search query syntax using QueryParser and Parse::RecDescent.

Materials

Some of the recipes in the Cookbook reference the completed Tutorial application. These materials can be found in the sample directory at the root of the Lucy distribution:

sample/indexer.pl        # indexing app
sample/search.cgi        # search app
sample/us_constitution   # corpus