{"data":{"id":"96f2c92d-cfe0-4ebd-8e02-f3f2e6a674fb","title":"v0.14.21","summary":"LlamaIndex v0.14.21 is a maintenance release that fixes several bugs in the core library, including a KeyError (an error when looking up a value in a data structure that doesn't exist) in the DocumentSummaryIndex deletion function, handling of output formatting errors, and UTF-8 encoding issues in file operations. The release also updates dependencies across many embedding and indexing modules to keep the library's supporting code current.","solution":"Update to llama-index-core version 0.14.21 or later. The fixes are included in this release version, which addresses the KeyError in DocumentSummaryIndex.delete_nodes, ValueError and TypeError from structured output failures, UTF-8 encoding issues in the persistence layer, and the Message Block Buffer Resolution breaking change.","labels":["security"],"sourceUrl":"https://github.com/run-llama/llama_index/releases/tag/v0.14.21","publishedAt":"2026-04-21T00:18:51.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"low","attackType":[],"issueType":"news","affectedPackages":null,"affectedVendors":["LlamaIndex"],"affectedVendorsRaw":["LlamaIndex"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"patchAvailable":null,"disclosureDate":"2026-04-21T00:18:51.000Z","capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["integrity"],"aiComponentTargeted":"framework","llmSpecific":false,"classifierConfidence":0.75,"researchCategory":null,"atlasIds":null}}