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CVE-2020-8908· NVD / CVE Program· CNA Google

Temp directory permission issue in Guava

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.

LowCVSS 3.3 · v3.1—No exploit Fix available
Published
Dec 10, 2020
Updated
Jun 16, 2026
EPSS
1.0% · 61th percentile
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Report tools

JSON

Action score

13

Monitor

Low priority for now.

CVSS
13 / 40 · 3.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.0%

CNA vs NVD score

NVD
3.3
CNA · Google
3.3
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
googleguava
quarkusquarkus
oraclecommerce guided search
oraclecommunications cloud native core network slice selection function
oraclecommunications pricing design center
oracledata integrator
oraclenosql database
oraclepeoplesoft enterprise peopletools
oracleretail customer management and segmentation foundation
oracleweblogic server
oraclecommunications cloud native core network repository function
oracleprimavera unifier

and 1 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • google guavabefore 32.0.0
  • netapp active iq unified managerall versions
  • oracle commerce guided search11.3.2
  • oracle communications cloud native core network repository function1.14.0
  • oracle communications cloud native core network slice selection function1.2.1
  • oracle communications pricing design center12.0.0.4.0
  • oracle communications pricing design center12.0.0.5.0
  • oracle data integrator12.2.1.3.0
  • oracle data integrator12.2.1.4.0
  • oracle nosql databasebefore 20.3
  • oracle peoplesoft enterprise peopletools8.57
  • oracle peoplesoft enterprise peopletools8.58
  • oracle peoplesoft enterprise peopletools8.59
  • oracle primavera unifier17.7 and later · up to 17.12 inclusive
  • oracle primavera unifier18.8
  • oracle primavera unifier19.12
  • oracle primavera unifier20.12
  • oracle primavera unifier21.12
  • oracle retail customer management and segmentation foundation16.0 and later · up to 19.0 inclusive
  • oracle weblogic server14.1.1.0.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Google). Independent of NVD's CPE analysis and usually ahead of it.

  • Google LLC Guava

    • 1.0 and later · before 32.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12guava-librariesall versions—
Debian:13guava-librariesbefore 32.0.1-132.0.1-1
Mavencom.google.guava:guavabefore 32.0.0-android32.0.0-android
openSUSE:Tumbleweedguavabefore 30.1.1-1.230.1.1-1.2
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemisbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-clibefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-commonsbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-core-clientbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-dtobefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-hornetq-protocolbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-hqclient-protocolbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-jdbc-storebefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-jms-clientbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-jms-serverbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-journalbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-rabefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-selectorbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-serverbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-service-extensionsbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-activemq-artemis-toolsbefore 0:2.9.0-9.redhat_00019.1.el6eap0:2.9.0-9.redhat_00019.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-bouncycastlebefore 0:1.68.0-1.redhat_00001.1.el6eap0:1.68.0-1.redhat_00001.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-bouncycastle-mailbefore 0:1.68.0-1.redhat_00001.1.el6eap0:1.68.0-1.redhat_00001.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-bouncycastle-pkixbefore 0:1.68.0-1.redhat_00001.1.el6eap0:1.68.0-1.redhat_00001.1.el6eap
Red Hat:jboss_enterprise_application_platform:7.3::el6eap7-bouncycastle-provbefore 0:1.68.0-1.redhat_00001.1.el6eap0:1.68.0-1.redhat_00001.1.el6eap

+96

Other highest-scoring records for the same primary product.

  • CVE-2023-2976Use of temporary directory for file creation in `FileBackedOutputStream` in Guava
    28Monitor
  • CVE-2018-10237Unbounded memory allocation in Google Guava 11.0 through 24.x before 24.1.1 allows remote attackers to conduct denial of service attacks aga
    25Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:guava-libraries32.0.1-1 · Debian:13Package registry (OSV)
Maven:com.google.guava:guava32.0.0-androidPackage registry (OSV)
opensuse:guava32.0.1-150200.3.7.1 · openSUSE:Leap 15.4Package registry (OSV)
red hat:eap7-activemq-artemis0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-cli0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-commons0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-core-client0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-dto0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-hornetq-protocol0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-hqclient-protocol0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-jdbc-store0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-jms-client0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-jms-server0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-journal0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
red hat:eap7-activemq-artemis-ra0:2.9.0-9.redhat_00019.1.el6eap · Red Hat:jboss_enterprise_application_platform:7.3::el6Package registry (OSV)
suse:guava32.0.1-150200.3.7.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP4Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records