# CVE-2026-119372: SQLite before 3.54.0 Use-After-Free in FTS3 fts3BestSnippet() via snippet()

Status: published. Published: 2026-10-30. Updated: 2026-11-04.

SQLite before 3.54.0 built with FTS3/FTS4 and SQLITE_ENABLE_FTS3_PARENTHESIS contains a use-after-free vulnerability in fts3BestSnippet() caused by dangling cached position-list pointers. Attackers can run a full-text MATCH query combining OR and NEAR operators with snippet() to read freed heap memory and crash the process.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://sqlite.org/src/info/e4635c4153
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/sqlite/sqlite/commit/a87bd2471a9c0606e78d3c3678bcd9cecaa0e731
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: disclosure@vulncheck.com) — https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/fts3/fts3_snippet.c#L561
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: disclosure@vulncheck.com) — https://github.com/sqlite/sqlite/commit/a87bd2471a9c0606e78d3c3678bcd9cecaa0e731
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: disclosure@vulncheck.com) — https://sqlite.org/bugs/info/2026-08-17T09:18:24Z
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: disclosure@vulncheck.com) — https://sqlite.org/src/info/e4635c4153

## Affected products and versions

- SQLite / SQLite: ≥ 0; < 3.54.0 (affected, custom). Source: CNA: VulnCheck; platforms: All platforms where SQLITE_ENABLE_FTS3 (or SQLITE_ENABLE_FTS4) and SQLITE_ENABLE_FTS3_PARENTHESIS are defined

## NVD configuration conditions

Affected CPE matches depend on the following AND/OR and negation conditions:

```json
[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:sqlite:sqlite:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "3.54.0",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]
```

## Severity and prioritization

- CVSS 4.0: 6.8 (medium); CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 5.5 (medium); CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H; source: CNA: VulnCheck

- CVSS 4.0: 6.8 (medium); CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/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; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 5.5 (medium); CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.13% as of 2026-11-03; percentile 2.71%

- SSVC: exploitation poc; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-416

## Exploit evidence

- exploit: https://sqlite.org/bugs/info/2026-08-17T09:18:24Z (ADP: CISA-ADP)
- exploit: https://abraxaslabs.tech/research/sqlite-fts3-snippet (disclosure@vulncheck.com)

## References

- https://sqlite.org/bugs/info/2026-08-17T09:18:24Z (CNA: VulnCheck; issue-tracking)

- https://sqlite.org/src/info/e4635c4153 (CNA: VulnCheck; patch)

- https://github.com/sqlite/sqlite/commit/a87bd2471a9c0606e78d3c3678bcd9cecaa0e731 (CNA: VulnCheck; patch)

- https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/fts3/fts3_snippet.c#L561 (CNA: VulnCheck; technical-description)

- https://sqlite.org/releaselog/3_54_0.html (CNA: VulnCheck; release-notes)

- https://abraxaslabs.tech/research/sqlite-fts3-snippet (CNA: VulnCheck; third-party-advisory)

- https://github.com/sqlite/sqlite (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/sqlite-before-3.54.0-use-after-free-in-fts3-fts3bestsnippet-via-snippet (CNA: VulnCheck; third-party-advisory)

- https://sqlite.org/bugs/info/2026-08-17T09:18:24Z (ADP: CISA-ADP; exploit)

- https://abraxaslabs.tech/research/sqlite-fts3-snippet (disclosure@vulncheck.com; Exploit, Third Party Advisory)

- https://github.com/sqlite/sqlite (disclosure@vulncheck.com; Product)

- https://github.com/sqlite/sqlite/blob/version-3.53.4/ext/fts3/fts3_snippet.c#L561 (disclosure@vulncheck.com; Patch)

- https://github.com/sqlite/sqlite/commit/a87bd2471a9c0606e78d3c3678bcd9cecaa0e731 (disclosure@vulncheck.com; Patch)

- https://sqlite.org/bugs/info/2026-08-17T09:18:24Z (disclosure@vulncheck.com; Issue Tracking, Patch, Vendor Advisory)

- https://sqlite.org/releaselog/3_54_0.html (disclosure@vulncheck.com; Release Notes)

- https://sqlite.org/src/info/e4635c4153 (disclosure@vulncheck.com; Patch, Vendor Advisory)

- https://www.vulncheck.com/advisories/sqlite-before-3.54.0-use-after-free-in-fts3-fts3bestsnippet-via-snippet (disclosure@vulncheck.com; Third Party Advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-119372; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-119372; retrieved 2026-11-03; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-119372; retrieved 2026-11-04; source updated Not reported

Revision: 7717a8ce54bf8bda1fdcdbd9b114135b0df51fa577c7f91ecb88420317d5d891

Canonical: https://y2.dev/cve/CVE-2026-119372

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