SQL Injection Vulnerability in Aptabase's ClickHouse Query Backend
CVE-2026-63080

7.1HIGH

Key Information:

Vendor

Aptabase

Status
Aptabase
Vendor
CVE Published:
21 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-63080?

A SQL injection vulnerability exists within Aptabase's ClickHouse query backend, stemming from commit 5a89368. This flaw enables authenticated attackers to exploit unsanitized filter parameters in Liquid SQL templates, allowing unauthorized access to event data across multiple tenants. By manipulating parameters such as EventName, CountryCode, OsName, DeviceModel, AppVersion, or SessionId, attackers can execute a UNION ALL statement that circumvents the tenant isolation controls associated with app_id. This vulnerability affects thirteen out of fifteen stats API endpoints, thereby posing a significant risk of data exposure.

Affected Version(s)

aptabase 0 <= 5a8936852a20c26267ffaefd3544f91e3ca94135

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-63080 - Proof of Concept

References

https://yoyochaud.fr/en/chaud/cve-2026-63080-aptabase-sql...
technical-descriptionexploit
https://www.vulncheck.com/advisories/aptabase-sql-injecti...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

YoyoChaud
.