🛡️ CVE-2022-35942 — loopback-connector-postgresql

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-20 OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

loopback-connector-postgresql Vulnerable to Improper Sanitization of contains Filter

Improper input validation on the contains LoopBack filter may allow for arbitrary SQL injection.

Impact

When the extended filter property contains is permitted to be interpreted by the Postgres connector, it is possible to inject arbitrary SQL which may affect the confidentiality and integrity of data stored on the connected database.

This affects users who does any of the following:

  • Connect to the database via the DataSource with allowExtendedProperties: true setting OR
  • Uses the connector's CRUD methods directly OR
  • Uses the connector's other methods to interpret the LoopBack filter.

Patches

Patch release [email protected] has been published of which resolves this issue.

Workarounds

Users who are unable to upgrade should do the following if applicable:

  • Remove allowExtendedProperties: true DataSource setting
  • Add allowExtendedProperties: false DataSource setting
  • When passing directly to the connector functions, manually sanitize the user input for the contains LoopBack filter beforehand.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2022-35942 is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.

Affected software

CVE-2022-35942 is recorded against 1 package.

  • loopback-connector-postgresql

Timeline and source

Published on 11 August 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from OSV.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE CWE-20
Public Exploit ✅ No
Source OSV
Published 2022-08-11
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
loopback-connector-postgresql — —

Exploit Protection

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CVE-2022-35942 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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