CVE-2026-11824

Aliases:DEBIAN-CVE-2026-11824ALPINE-CVE-2026-11824UBUNTU-CVE-2026-11824
Advisory lineage Upstream: 0 Downstream: 28
Analyzed
Published: 09 Jun 2026, 19:21
Last modified:14 Jul 2026, 15:53

Vulnerability Summary

Overall Risk (default)
medium
34/100
CVSS Score
8.5 HIGH
v4.0 (cve.org)
EPSS Score
0.18% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Jun 2026, 19:21
Published
Vulnerability first disclosed
14 Jul 2026, 15:53
Last Modified
Vulnerability information updated

Description

SQLite before 3.53.2 contains a heap-based buffer overflow vulnerability in the FTS5 full-text search extension that allows attackers to cause a crash or execute arbitrary code by supplying a crafted database with malicious continuation page metadata specifying a szLeaf value smaller than 4. Attackers can trigger an integer underflow in fts5ChunkIterate() causing an inflated remaining byte count during FTS5 MATCH query processing, leading to a heap buffer overflow of attacker-controlled data in applications compiled with SQLITE_ENABLE_FTS5.

CVSS Metrics

  • v4.0•HIGH•Score: 8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • v4.0•HIGH•Score: 8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.18%• Percentile: 7%

Techniques & Countermeasures

  • CWE-122•Heap-based Buffer Overflow

    A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Affected Systems

  • alpine•sqlite

    < 3.53.4-r0

  • debian•sqlite3

    all | all | all | < 3.46.1-7+deb13u2 | < 3.53.2-1

  • ubuntu•sqlite

    all | all | all | all | all

  • ubuntu•sqlite3

    all | < 3.37.2-2ubuntu0.6 | < 3.45.1-1ubuntu2.6 | < 3.46.1-8ubuntu0.1 | < 3.46.1-9ubuntu0.1

  • sqlite•sqlite

    < 3.53.2

References (9)