Medium
Security advisory
An issue discovered in XZ 5.2.5 allows attackers to cause a denial of service via decompression of a crafted file. NOTE: the vendor disputes the claims of "endless output" and "denial of service" because decompression of the 17,486 bytes always results in 114,881,179 bytes, which is often a reasonable size increase.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-22916
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:05 UTC · Revision 1
Source evidence
An issue discovered in XZ 5.2.5 allows attackers to cause a denial of service via decompression of a crafted file. NOTE: the vendor disputes the claims of "endless output" and "denial of service" because decompression of the 17,486 bytes always results in 114,881,179 bytes, which is often a reasonable size increase.
osv:CVE-2020-22916
Complete source record
{
"id": "741db53e12e2bee271424a8d2e610fdb8f6a8863964306985004fe7f978470b4",
"url": "https://osv.dev/vulnerability/CVE-2020-22916",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-22916",
"summary": "An issue discovered in XZ 5.2.5 allows attackers to cause a denial of service via decompression of a crafted file. NOTE: the vendor disputes the claims of \"endless output\" and \"denial of service\" because decompression of the 17,486 bytes always results in 114,881,179 bytes, which is often a reasonable size increase.",
"evidence": "osv:CVE-2020-22916",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-22916",
"aliases": [
"CVE-2020-22916"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/tukaani-project/xz",
"type": "GIT",
"events": [
{
"introduced": "2327a461e1afce862c22269b80d3517801103c1b"
},
{
"last_affected": "2327a461e1afce862c22269b80d3517801103c1b"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:tukaani:xz:5.2.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.2.5"
},
{
"last_affected": "5.2.5"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"5.2.5",
"v5.2.5"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-22916.json"
}
}
],
"modified": "2026-10-20T10:52:48.818956861Z",
"provider": "osv",
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-22916",
"https://tukaani.org/xz/",
"https://bugzilla.redhat.com/show_bug.cgi?id=2234987",
"https://bugzilla.suse.com/show_bug.cgi?id=1214590",
"https://github.com/tukaani-project/xz/issues/61",
"https://github.com/snappyJack/CVE-request-XZ-5.2.5-has-denial-of-service-vulnerability"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-22916",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 383848,
"published_at": "2023-08-22T19:16:19.407+00:00"
}