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CVE-2026-52851— Traccar: Authenticated Blind SQL Injection in DELETE /api/permissions

Quick assessment

Affected
traccar traccar
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Traccar 是一个开源的 GPS 跟踪系统。在 6.14.0 版本之前，经过身份验证且非只读用户，若拥有可用于权限对（permission pair）的对象访问权限，可以提交带有额外由攻击者控制的 JSON 键的 请求。 位于 中的 仅验证前两个键，但 中的 会将映射中的所有键拼接进 SQL 的 WHERE 子句，作为列标识符使用。因此，这个额外的键就变成了由攻击者控制的 SQL，从而提供了一个盲文布尔或错误预言机（oracle），可用于提取任意数据库值（包括管理员邮箱、密码哈希和盐值），或者有条件地删除权限记

CVSS 7.1 · High EPSS 0.02% · P6

Affected Version Matrix 1

VendorProduct Version RangeStatus
traccar traccar < 6.14.0 affected
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I. Basic Information for CVE-2026-52851

Vulnerability Information
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Vulnerability Title
Traccar: Authenticated Blind SQL Injection in DELETE /api/permissions
Source: CVE Program / CVE List V5
Vulnerability Description
Traccar is an open source GPS tracking system. Prior to 6.14.0, an authenticated, non-readonly user with access to an object usable in a permission pair can submit DELETE /api/permissions with an extra attacker-controlled JSON key. Permission(LinkedHashMap<String, Long>) in src/main/java/org/traccar/model/Permission.java validates only the first two keys, but DatabaseStorage.removePermission() in src/main/java/org/traccar/storage/DatabaseStorage.java concatenates every map key into the SQL WHERE clause as a column identifier. The extra key therefore becomes attacker-controlled SQL and provides a blind boolean or error oracle that can extract arbitrary database values, including administrator email, password hashes, and salts, or conditionally delete permission rows. Unauthenticated requests are rejected. This issue is fixed in 6.14.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
traccar traccar < 6.14.0 -

II. Public POCs for CVE-2026-52851

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III. Intelligence Information for CVE-2026-52851

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Patches & Fixes for CVE-2026-52851 (1)

Vendor Advisories for CVE-2026-52851 (1)

Vendor Pages for CVE-2026-52851 (1)

IV. Related Vulnerabilities

Same product: traccar
Same vendor: traccar
Same weakness: CWE-89

V. Comments for CVE-2026-52851

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