🛡️ CVE-2026-54619 — sqlite3
Description
sqlite3-ruby has Use-After-Free When Redefining SQLite Functions with Different Arity
Summary
Using Database#create_function or Database#define_function to define the same function name more than once with different numbers of arguments ("arity") or text encodings will result in a invalid memory read and a segmentation fault.
Mitigation
Upgrade to sqlite3 gem v2.9.5 or later.
As a workaround, avoid defining multiple custom functions with the same name (varying numbers of arguments or encoding).
Severity
The sqlite3-ruby maintainers assess this as Low severity. It is reliably triggered after GC when code is structured in a particular way. There is no known general exploit that could be used as a denial of service attack.
How this vulnerability can be exploited
This issue can be reached with local access to the system, attack complexity is high, an attacker needs low-level privileges on the target. No user interaction is required. Rated impact: confidentiality low, integrity low, availability low.
Weakness class
CVE-2026-54619 is classified as CWE-416: Use After Free. Memory is used after being released, so its contents may already belong to something else.
Affected software
CVE-2026-54619 is recorded against 3 packages.
- sqlite3 (fixed in 2.9.5)
- sqlite3-ruby (fixed in 2.9.5)
- unknown
Timeline and source
Published on 28 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)
www.cve.org (Web)
Details
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| sqlite3 | — | 2.9.5 |
| sqlite3-ruby | — | 2.9.5 |
| unknown | — | — |
References
Similar Threats
- Low CVE-2026-54620
- Unknown CLSA-2025-1760649409
- Unknown CLSA-2025-1755885175
- Unknown CLSA-2025-1755113204
- Unknown CLSA-2025-1754410992
More CVE 2026 advisories
Browse all of CVE 2026 in the advisory index.
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