MediumFix available
kotlin — security advisory
In JetBrains Kotlin before 1.4.21, a vulnerable Java API was used for temporary file and folder creation. An attacker was able to read data from such files and list directories due to insecure permissions.
- Products
- kotlin
- Affected versions
- 1.3.31+ds1-1, 1.3.31+ds1-2, 1.3.31+ds1-3, 1.3.31+ds1-4, 1.3.31+ds1-5, 1.3.31+ds1-6, 1.3.31+ds1-7
- Fixed versions
- 1.3.31+ds1-3
- CVEs
- CVE-2020-29582
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:59 UTC · Revision 2
Source evidence
In JetBrains Kotlin before 1.4.21, a vulnerable Java API was used for temporary file and folder creation. An attacker was able to read data from such files and list directories due to insecure permissions.
osv:DEBIAN-CVE-2020-29582
kotlin
Fixed versions: Not specified
kotlin
Fixed versions: 1.3.31+ds1-3
kotlin
Fixed versions: 1.3.31+ds1-3
Complete source record
{
"id": "ad6425b738dc4343d7782aa367d872ef843bddff9d85de1ad6b105a0cb4af74a",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-29582",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-29582",
"summary": "In JetBrains Kotlin before 1.4.21, a vulnerable Java API was used for temporary file and folder creation. An attacker was able to read data from such files and list directories due to insecure permissions.",
"evidence": "osv:DEBIAN-CVE-2020-29582",
"products": [
{
"name": {
"value": "kotlin",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.3.31+ds1-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.31+ds1-2",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.31+ds1-3",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.31+ds1-4",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.31+ds1-5",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.31+ds1-6",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.31+ds1-7",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "kotlin",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.3.31+ds1-3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kotlin",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.3.31+ds1-3",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2020-29582",
"aliases": [
"DEBIAN-CVE-2020-29582"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "kotlin",
"purl": "pkg:deb/debian/kotlin?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.3.31+ds1-1",
"1.3.31+ds1-2",
"1.3.31+ds1-3",
"1.3.31+ds1-4",
"1.3.31+ds1-5",
"1.3.31+ds1-6",
"1.3.31+ds1-7"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-29582.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.31+ds1-3"
}
]
}
],
"package": {
"name": "kotlin",
"purl": "pkg:deb/debian/kotlin?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-29582.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.31+ds1-3"
}
]
}
],
"package": {
"name": "kotlin",
"purl": "pkg:deb/debian/kotlin?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-29582.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:02:49.488885954Z",
"provider": "osv",
"upstream": [
"CVE-2020-29582"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-29582"
]
},
"related_cves": [
{
"value": "CVE-2020-29582",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 453030,
"published_at": "2021-02-03T16:15:13.727+00:00"
}