{"id":"CVE-2022-21230","aliases":["EUVD-2022-26457","GHSA-2r85-x9cf-8fcg","SNYK-JAVA-ORGNANOHTTPD-2422798"],"status":"published","title":"Information Exposure","description":"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.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.003,"percentile":0.22993,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-05-01T15:20:21Z","modified":"2026-10-28T02:31:01Z","products":[{"vendor":"nanohttpd","product":"nanohttpd"}],"references":[{"url":"https://snyk.io/vuln/SNYK-JAVA-ORGNANOHTTPD-2422798","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/NanoHttpd/nanohttpd/blob/efb2ebf85a2b06f7c508aba9eaad5377e3a01e81/core/src/main/java/org/nanohttpd/protocols/http/tempfiles/DefaultTempFile.java%23L58","tags":["x_refsource_MISC","x_transferred","Broken Link","web"]},{"url":"https://github.com/NanoHttpd/nanohttpd/blob/efb2ebf85a2b06f7c508aba9eaad5377e3a01e81/core/src/main/java/org/nanohttpd/protocols/http/tempfiles/DefaultTempFileManager.java%23L60","tags":["x_refsource_MISC","x_transferred","Broken Link","web"]},{"url":"https://github.com/JLLeitschuh/security-research/security/advisories/GHSA-2r85-x9cf-8fcg","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21230.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21230","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2022-21230","title":"Information Exposure","description":"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.","status":"published","published":"2022-05-01T15:20:21.538Z","modified":"2024-09-16T23:31:10.779Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:34:29.478363Z"}],"euvd":[{"id":"EUVD-2022-26457","description":"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.","status":"published","published":"2022-05-01T15:20:21Z","modified":"2024-09-16T23:31:10Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:54:49.761845Z"}],"nvd":[{"id":"CVE-2022-21230","description":"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.","status":"published","published":"2022-05-01T16:15:08.25Z","modified":"2026-06-17T04:25:49.2Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:07:18.660414Z"}],"osv":[{"id":"CVE-2022-21230","title":"Information Exposure","description":"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.","status":"published","published":"2022-05-01T15:20:21.538Z","modified":"2026-10-28T02:31:01.60579699Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:23.655778Z"}]}}