# CVE-2020-8165: ActiveSupport potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore

Source: https://junglewise.ai/threats/cve-2020-8165-activesupport-potentially-unintended-unmarshalling-of-user  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2020-05-26  
License: CC BY 4.0 with a link back

CVE-2020-8165 · Severity: low · CVSS 3.1 · Published 2020-05-26

ActiveSupport potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore

Technologies: [activesupport (RubyGems)](https://junglewise.ai/threats/technologies/activesupport). Vendors: [RubyGems](https://junglewise.ai/threats/vendors/rubygems).

## Quick answers

**Is CVE-2020-8165 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2020-8165 being exploited in the wild.

**How severe is CVE-2020-8165?** Low severity, with a CVSS score of 3.1, published 26 May 2020.

**Which products and versions are affected?** activesupport (RubyGems) ECOSYSTEM:introduced=5.0.0,fixed=5.2.4.3.

**Is there a fix for CVE-2020-8165?** Yes. activesupport (RubyGems): upgrade to 5.2.4.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2020-8165?** Check whether you run activesupport (RubyGems) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- activesupport (RubyGems): upgrade to 5.2.4.3 or later

  ```sh
  bundle update activesupport
  ```


## Affected products

- activesupport (RubyGems) ECOSYSTEM:introduced=5.0.0,fixed=5.2.4.3

## Identifiers

- CVE-2020-8165
- GHSA-2p68-f74v-9wc6

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