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EUVDEUVD-2026-49896

| CVE-2026-54619 LOW
Use After Free (CWE-416)
2026-07-28 https://github.com/sparklemotion/sqlite3-ruby GHSA-28hh-pr2h-2w89
2.0
CVSS 4.0 · Vendor: https://github.com/sparklemotion/sqlite3-ruby
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Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Memory lifecycle management
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 28, 2026

A use-after-free vulnerability in the sqlite3-ruby gem allows an attacker to crash the Ruby process by defining a custom SQLite function with the same name but a different number of arguments or text encoding, leading to an invalid memory read and segmentation fault. The issue affects versions prior to 2.9.5 and was assessed as low severity by the maintainers due to the specific code pattern required for exploitation.

Affected VersionsENISA

sqlite3-ruby < 2.9.5

Affected Packages

rubygems sqlite3 fix: 2.9.5
rubygems sqlite3-ruby fix: 2.9.5

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in rubygems

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (https://github.com/sparklemotion/sqlite3-ruby) PRIMARY 2.0 LOW
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

Primary rating from Vendor (https://github.com/sparklemotion/sqlite3-ruby) · only source for this CVE.

CVSS VectorVendor: https://github.com/sparklemotion/sqlite3-ruby

Attack Vector
Local
Attack Complexity
High
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
Low
Vulnerable system: Availability
Low
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

1
CVSS changed
Jul 28, 2026 - 17:22 NVD
2.0 (LOW)

DescriptionCVE.org

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.

Threat Intelligence Overview

EPSS Score
0.1%
Top 99% exploitable
Threat Intel
1
1 source
Data Quality
6 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment GHSA GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity LOW
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Low
Technical Impact
Partial

Priority Score

10
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +10
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Use-after-free vulnerabilities occur when a program continues to access memory through a pointer after that memory has been deallocated.

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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