ubuntu-cve-2026-41989
Vulnerability from osv_ubuntu
Published
2026-04-23 05:16
Modified
2026-06-26 17:24
Summary
Details
Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.
Severity
6.7 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgcrypt20",
"binary_version": "1.6.5-2ubuntu0.6+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.6.5-2ubuntu0.6+esm1?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.6.3-2ubuntu1",
"1.6.4-3",
"1.6.4-4",
"1.6.4-5",
"1.6.5-2",
"1.6.5-2ubuntu0.2",
"1.6.5-2ubuntu0.3",
"1.6.5-2ubuntu0.4",
"1.6.5-2ubuntu0.5",
"1.6.5-2ubuntu0.6",
"1.6.5-2ubuntu0.6+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgcrypt20",
"binary_version": "1.8.1-4ubuntu1.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.8.1-4ubuntu1.3?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.7.8-2ubuntu1",
"1.7.9-1",
"1.8.1-4",
"1.8.1-4ubuntu1",
"1.8.1-4ubuntu1.1",
"1.8.1-4ubuntu1.2",
"1.8.1-4ubuntu1.3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgcrypt20",
"binary_version": "1.8.1-4ubuntu1.fips.3"
},
{
"binary_name": "libgcrypt20-hmac",
"binary_version": "1.8.1-4ubuntu1.fips.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:FIPS-updates:18.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.8.1-4ubuntu1.fips.3?arch=source\u0026distro=fips-updates/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.8.1-4ubuntu1.fips.2.4",
"1.8.1-4ubuntu1.fips.2.5",
"1.8.1-4ubuntu1.fips.3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgcrypt20",
"binary_version": "1.8.1-4ubuntu1.fips.2.5"
},
{
"binary_name": "libgcrypt20-hmac",
"binary_version": "1.8.1-4ubuntu1.fips.2.5"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:FIPS:18.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.8.1-4ubuntu1.fips.2.5?arch=source\u0026distro=fips/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.8.1-4ubuntu1.fips.2.4",
"1.8.1-4ubuntu1.fips.2.5"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgcrypt20",
"binary_version": "1.8.5-5ubuntu1.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.8.5-5ubuntu1.1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.8.4-5ubuntu2",
"1.8.5-3ubuntu1",
"1.8.5-5ubuntu1",
"1.8.5-5ubuntu1.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgcrypt20",
"binary_version": "1.8.5-5ubuntu1.fips.1.7"
},
{
"binary_name": "libgcrypt20-hmac",
"binary_version": "1.8.5-5ubuntu1.fips.1.7"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:FIPS-updates:20.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.8.5-5ubuntu1.fips.1.7?arch=source\u0026distro=fips-updates/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.8.5-5ubuntu1.fips.1.1",
"1.8.5-5ubuntu1.fips.1.4",
"1.8.5-5ubuntu1.fips.1.5",
"1.8.5-5ubuntu1.fips.1.7"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgcrypt20",
"binary_version": "1.8.5-5ubuntu1.fips.1.4"
},
{
"binary_name": "libgcrypt20-hmac",
"binary_version": "1.8.5-5ubuntu1.fips.1.4"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:FIPS:20.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.8.5-5ubuntu1.fips.1.4?arch=source\u0026distro=fips/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.8.5-5ubuntu1.fips.1.1",
"1.8.5-5ubuntu1.fips.1.4"
]
},
{
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgcrypt20",
"binary_version": "1.9.4-3ubuntu3+Fips1.2"
},
{
"binary_name": "libgcrypt20-hmac",
"binary_version": "1.9.4-3ubuntu3+Fips1.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:FIPS-preview:22.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.9.4-3ubuntu3+Fips1.2?arch=source\u0026distro=fips-preview/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.9.4-3ubuntu3+Fips1.1",
"1.9.4-3ubuntu3+Fips1.2"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libgcrypt20",
"binary_version": "1.9.4-3ubuntu3.2+Fips1"
},
{
"binary_name": "libgcrypt20-hmac",
"binary_version": "1.9.4-3ubuntu3.2+Fips1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:FIPS-updates:22.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.9.4-3ubuntu3.2+Fips1?arch=source\u0026distro=fips-updates/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.9.4-3ubuntu3.2+Fips1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.9.4-3ubuntu3+Fips1.1",
"1.9.4-3ubuntu3+Fips1.2",
"1.9.4-3ubuntu3+Fips1.3",
"1.9.4-3ubuntu3+Fips1.4"
]
},
{
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libgcrypt-bin",
"binary_version": "1.12.0-2ubuntu0.1~Fips1~rc11"
},
{
"binary_name": "libgcrypt20",
"binary_version": "1.12.0-2ubuntu0.1~Fips1~rc11"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:FIPS-updates:24.04:LTS",
"name": "libgcrypt20",
"purl": "pkg:deb/ubuntu/libgcrypt20@1.12.0-2ubuntu0.1~Fips1~rc11?arch=source\u0026distro=fips-updates/noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.10.3-2ubuntu0.1~Fips1~rc6",
"1.10.3-2ubuntu0.1~Fips1~rc7",
"1.12.0-2ubuntu0.1~Fips1~rc11"
]
},
{
"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"
]
},
{
"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": "Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.",
"id": "UBUNTU-CVE-2026-41989",
"modified": "2026-06-26T17:24:26Z",
"published": "2026-04-23T05:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-41989"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-41989"
},
{
"type": "REPORT",
"url": "https://www.openwall.com/lists/oss-security/2026/04/21/1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8319-1"
}
],
"related": [
"USN-8319-1"
],
"schema_version": "1.7.0",
"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"
}
],
"upstream": [
"CVE-2026-41989"
]
}
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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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