CVE-2022-21230

    Dashboard / Vulnerabilities / CVE-2022-21230

    CVE-2022-21230

    Published: 1 May 2022Last Modified: 12 Aug 2026

    Summary: Information Exposure

    Details: This affects all versions of package org.nanohttpd:nanohttpd. Whenever an HTTP Session is parsing the body of an HTTP request, the body of the request is written to a RandomAccessFile when the it is larger than 1024 bytes. This file is created with insecure permissions that allow its contents to be viewed by all users on the host machine. **Workaround:** Manually specifying the -Djava.io.tmpdir= argument when launching Java to set the temporary directory to a directory exclusively controlled by the current user can fix this issue.

    References: https://github.com/NanoHttpd/nanohttpd/blob/efb2ebf85a2b06f7c508aba9eaad5377e3a01e81/core/src/main/java/org/nanohttpd/protocols/http/tempfiles/DefaultTempFile.java%23L58, https://github.com/NanoHttpd/nanohttpd/blob/efb2ebf85a2b06f7c508aba9eaad5377e3a01e81/core/src/main/java/org/nanohttpd/protocols/http/tempfiles/DefaultTempFileManager.java%23L60, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21230.json, https://github.com/JLLeitschuh/security-research/security/advisories/GHSA-2r85-x9cf-8fcg, https://nvd.nist.gov/vuln/detail/CVE-2022-21230, https://snyk.io/vuln/SNYK-JAVA-ORGNANOHTTPD-2422798

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    nanohttpd-project-2.3.1
    nanohttpd-project-2.3.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2022-21230 | CVE-DB