usn-8319-1
Vulnerability from osv_ubuntu
Published
2026-05-27 12:32
Modified
2026-05-27 12:32
Summary
libgcrypt20 vulnerabilities
Details
It was discovered that Libgcrypt incorrectly handled crafted ECDH ciphertext. An attacker could possibly use this issue to cause Libgcrypt to crash, resulting in a denial of service. (CVE-2026-41989)
It was discovered that Libgcrypt incorrectly handled Dilithium signing. An attacker could possibly use this issue to cause Libgcrypt to crash, resulting in a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-41990)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-41989",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libgcrypt20",
"binary_version": "1.9.4-3ubuntu3.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.9.4-3ubuntu3.2?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.9.4-3ubuntu3.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.8.7-5ubuntu2",
"1.9.4-3ubuntu2",
"1.9.4-3ubuntu3"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-41989",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libgcrypt20",
"binary_version": "1.10.3-2ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.10.3-2ubuntu0.1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.3-2ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.10.2-3ubuntu1",
"1.10.3-2",
"1.10.3-2build1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-41989",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:25.10"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libgcrypt-bin",
"binary_version": "1.11.0-7ubuntu0.1"
},
{
"binary_name": "libgcrypt20",
"binary_version": "1.11.0-7ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.11.0-7ubuntu0.1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.11.0-7ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.11.0-6ubuntu1",
"1.11.0-7",
"1.11.0-7build1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-41989",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-41990",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:26.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libgcrypt-bin",
"binary_version": "1.12.0-2ubuntu0.1"
},
{
"binary_name": "libgcrypt20",
"binary_version": "1.12.0-2ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.12.0-2ubuntu0.1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.12.0-2ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.11.0-7build1",
"1.11.2-2",
"1.11.2-3",
"1.12.0-2"
]
}
],
"aliases": [],
"details": "It was discovered that Libgcrypt incorrectly handled crafted ECDH\nciphertext. An attacker could possibly use this issue to cause Libgcrypt to\ncrash, resulting in a denial of service. (CVE-2026-41989)\n\nIt was discovered that Libgcrypt incorrectly handled Dilithium signing. An\nattacker could possibly use this issue to cause Libgcrypt to crash,\nresulting in a denial of service. This issue only affected Ubuntu 26.04\nLTS. (CVE-2026-41990)",
"id": "USN-8319-1",
"modified": "2026-05-27T12:32:26Z",
"published": "2026-05-27T12:32:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8319-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-41989"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-41990"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "libgcrypt20 vulnerabilities",
"upstream": [
"UBUNTU-CVE-2026-41989",
"UBUNTU-CVE-2026-41990"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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