CVE-2021-29429

Information disclosure through temporary directory permissions

MEDIUM
5.5
CVSS Score
Published: April 12, 2021 at 09:30 PM UTC
Updated: October 8, 2026 at 10:17 PM UTC
2 products affected across 2 vendorsQuarkusGradle

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

In Gradle before version 7.0, files created with open permissions in the system temporary directory can allow an attacker to access information downloaded by Gradle. Some builds could be vulnerable to a local information disclosure. Remote files accessed through TextResourceFactory are downloaded into the system temporary directory first. Sensitive information contained in these files can be exposed to other local users on the same system. If you do not use the `TextResourceFactory` API, you are not vulnerable. As of Gradle 7.0, uses of the system temporary directory have been moved to the Gradle User Home directory. By default, this directory is restricted to the user running the build. As a workaround, set a more restrictive umask that removes read access to other users. When files are created in the system temporary directory, they will not be accessible to other users. If you are unable to change your system's umask, you can move the Java temporary directory by setting the System Property `java.io.tmpdir`. The new path needs to limit permissions to the build user only.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 7.0*
Affected range stops below 7.0, so it looks safe — our inference, not a vendor statement
v ≤ 2.2.3*

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_CONFIRMExploitMitigationThird Party Advisory
https://github.com/gradle/gradle/security/advisories/GHSA-fp8h-qmr5-j4c8

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-377

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