CVE-2026-119374SQLite before 3.54.0 Heap Buffer Overflow via FTS5 fts5DoSecureDelete()

Description

SQLite before 3.54.0 built with FTS5 contains a heap buffer overflow in fts5DoSecureDelete() that allows attackers to write past the leaf page buffer via crafted footer key offsets. Attackers can supply a database file with a corrupted FTS5 index that, when deleted from with secure-delete enabled, corrupts heap memory and crashes the application.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://sqlite.org/src/info/9cd4f9e920 patch
• https://github.com/sqlite/sqlite/commit/d9de6eedbe918c074c7556400fa21df5960704d9 patch
• https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/fts5/fts5_index.c#L5525 technical-description
• https://sqlite.org/releaselog/3_54_0.html release-notes
• https://abraxaslabs.tech/research/sqlite-fts5-securedel third-party-advisory
• https://github.com/sqlite/sqlite product
• VulnCheck Advisory: SQLite before 3.54.0 Heap Buffer Overflow via FTS5 fts5DoSecureDelete() third-party-advisory