VulnerabilityPublished 30 Oct 2026

CVE-2026-96634: AdminNeo SQLite · multi_query Incorrect Check of Function Return Value RCE

Affects adminneo-org/adminneoSource GCVE Database

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Mentioned vulnerabilities

CVE-2021-43008

Not known to be exploited · CVSS 6.9 Medium : upgrade to 5.5.1 when convenient.

Data as of 31 Oct 2026, 02:07 UTC

CVSS 4.0 base score

6.9Medium

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 5.5.1

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: None
User Interaction: None
Vulnerable system confidentiality: None
Vulnerable system integrity: None
Vulnerable system availability: Low
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the Vulnerable System are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 30 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade adminneo-org/adminneo to 5.5.1.

Affected software

Product	Affected	Fixed in
Packagistadminneo-org/adminneo	Affected <5.5.1	Fixed in 5.5.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available in AdminNeo version 5.5.1 that fixes this vulnerability. Users should upgrade to version 5.5.1 or later to remediate this issue. No additional mitigation steps are required once the patch is applied.

Description

CVE-2026-96634 is a remote code execution vulnerability in AdminNeo's SQLite functionality. It arises from a patch bypass exploiting catastrophic backtracking in a regular expression designed to filter ATTACH SQL statements. The vulnerability allows an attacker to bypass the ATTACH filter by causing PHP's preg_match() to fail due to excessive backtracking, enabling execution of malicious ATTACH queries that create PHP files on the server. This flaw affects AdminNeo versions prior to 5.5.1 and has a medium severity rating with a CVSS score of 6.9. A fix is available in version 5.5.1.

Impact

An attacker who can upload malicious SQL files can bypass the ATTACH statement filter due to catastrophic backtracking in the regex, enabling execution of arbitrary ATTACH queries. This allows creation of PHP files on the server, resulting in remote code execution without authentication. The vulnerability has a medium severity with a CVSS score of 6.9 and can lead to full compromise of the affected system.

Summary

This vulnerability is a patch bypass that exploits catastrophic backtracking in a regex filter intended to block ATTACH statements in AdminNeo's SQLite import handler. The original vulnerability (CVE-2021-43008) allowed authenticated users to execute remote code by creating PHP files via ATTACH statements. The patch introduced a regex filter using a complex pattern with possessive quantifiers and SQLite comment patterns. When processing a large number of SQLite comment lines, the regex triggers catastrophic backtracking, causing PHP's preg_match() to return false due to hitting the backtracking limit. The code incorrectly treats this false return as no match, allowing the malicious ATTACH query to bypass the filter and execute. This leads to remote code execution by creating PHP files with embedded code accessible via HTTP. The vulnerability affects AdminNeo versions before 5.5.1, which includes the fix.

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection) (opens in a new tab)
Class weaknessLikelihood of exploit: HighOWASP Top 10 A05:2025: Injection (opens in a new tab)
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
Requirements
Programming languages and supporting technologies might be chosen which are not subject to these issues.
Implementation
Utilize an appropriate mix of allowlist and denylist parsing to filter control-plane syntax from all input.
OWASP Cheat Sheets
Abuse Case (opens in a new tab)
Deserialization (opens in a new tab)
Injection Prevention (opens in a new tab)
SQL Injection Prevention (opens in a new tab)
Injection Prevention in Java (opens in a new tab)
OWASP ASVS 4.0.3
V1.5.1 (opens in a new tab)
Attack patterns
Buffer Overflow via Environment Variables (opens in a new tab)
Server Side Include (SSI) Injection (opens in a new tab)
HTTP Request Splitting (opens in a new tab)
Command Line Execution through SQL Injection (opens in a new tab)
Double Encoding (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 31 Oct 2026, 02:07 UTC

WeaknessesCWE-74

Technical details

References

Community reviews

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