CVE-2020-8908

What it is

A temp directory creation vulnerability exists in all versions of Guava, allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava API com.google.common.io.Files.createTempDir(). By default, on unix-like systems, the created directory is world-readable (readable by an attacker with access to the system). The method in question has been marked @Deprecated in versions 30.0 and later and should not be used. For Android developers, we recommend choosing a temporary directory API provided by Android, such as context.getCacheDir(). For other Java developers, we recommend migrating to the Java 7 API java.nio.file.Files.createTempDirectory() which explicitly configures permissions of 700, or configuring the Java runtime's java.io.tmpdir system property to point to a location whose permissions are appropriately configured.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. Limited direct impact.

Exploit odds

0.9% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2020-12-10 23:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-11-02 18:18 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.9% in the next 30 days (EPSS).
• Severity: 3.3 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2020-12-10 23:15 UTC

Last modified

2026-11-02 18:18 UTC

Exploit probability

0.9% · EPSS, next 30 days

Weakness

CWE-378

Record status

Modified

Affected

• Google Guava < 32.0.0
• Quarkus < 1.11.4
• Oracle Commerce Guided Search 11.3.2
• Oracle Communications Cloud Native Core Network Slice Selection Function 1.2.1
• Oracle Communications Pricing Design Center 12.0.0.4.0
• Oracle Communications Pricing Design Center 12.0.0.5.0
• Oracle Data Integrator 12.2.1.3.0
• Oracle Data Integrator 12.2.1.4.0

Attack profile CVSS 3.1 · 3.3

Attack vector

Local

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-8908.md and follow it. Check whether this project is affected by CVE-2020-8908. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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