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🛡️ CVE-2023-2976 — guava

🟡 CVSS 5.5 — Medium ✅ No Known Exploit CWE-379 NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Guava vulnerable to insecure use of temporary directory

Use of Java's default temporary directory for file creation in FileBackedOutputStream in Google Guava versions 1.0 to 31.1 on Unix systems and Android Ice Cream Sandwich allows other users and apps on the machine with access to the default Java temporary directory to be able to access the files created by the class.

Even though the security vulnerability is fixed in version 32.0.0, maintainers recommend using version 32.0.1 as version 32.0.0 breaks some functionality under Windows.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: None.
  • Availability impact: None.

Weakness class

CVE-2023-2976 is classified as CWE-379: Creation of Temporary File in Directory with Insecure Permissions. The product creates a temporary file in a directory whose permissions allow unintended actors to determine the file's existence or otherwise access that file.

Affected software

CVE-2023-2976 is recorded against 2 packages.

  • com.google.guava:guava (from 1.0 up to 32.0.0-android)
  • guava (fixed in 32.0.0)

Timeline and source

Published on 14 June 2023 and last revised on 4 February 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)
security.netapp.com (Web)
security.netapp.com (Web)
www.intel.com (Web)

Other advisories for this package

com.google.guava:guava has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-379: Creation of Temporary File in Directory with Insecure Permissions) in other software:

CVE-2023-2976 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Medium
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE CWE-379
Public Exploit ✅ No
Source NVD
Published 2023-06-14
Updated 2026-08-20
Modified 2026-02-04

Affected Packages

Software From version Fixed in
com.google.guava:guava 1.0 32.0.0-android
guava — 32.0.0

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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