Medium
libsolv — security advisory
A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted `.solv` file containing negative size values in the `repo_add_solv` function. This leads to an undersized memory allocation and a subsequent out-of-bounds write. An attacker could exploit this to cause a denial of service (DoS).
- Products
- libsolv
- Affected versions
- 0.6.11-1, 0.6.11-1.1, 0.6.11-1.1ubuntu0.1~esm1, 0.6.11-1build1, 0.6.28-2build1, 0.6.30-1build1, 0.6.30-1ubuntu0.1~esm1, 0.6.35-2ubuntu1, 0.6.35-2ubuntu2, 0.6.36-1, 0.6.36-2, 0.7.17-2, 0.7.20-1, 0.7.20-1build2, 0.7.20-1ubuntu0.22.04.1, 0.7.24-1, 0.7.25-1, 0.7.26-1, 0.7.26-2, 0.7.27-1, 0.7.27-2, 0.7.27-2build1, 0.7.28-1, 0.7.28-1build1, 0.7.28-1build2, 0.7.31-1build1, 0.7.32-1, 0.7.35-1, 0.7.35-1build1, 0.7.38-1, 0.7.39-1, 0.7.39-1build1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-9149
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:31 UTC · Revision 1
Source evidence
A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted `.solv` file containing negative size values in the `repo_add_solv` function. This leads to an undersized memory allocation and a subsequent out-of-bounds write. An attacker could exploit this to cause a denial of service (DoS).
osv:UBUNTU-CVE-2026-9149
libsolv
Fixed versions: Not specified
libsolv
Fixed versions: Not specified
libsolv
Fixed versions: Not specified
libsolv
Fixed versions: Not specified
libsolv
Fixed versions: Not specified
libsolv
Fixed versions: Not specified
libsolv
Fixed versions: Not specified
libsolv
Fixed versions: Not specified
Complete source record
{
"id": "7586c4975549670bab4b98de8bb678cc77fd3140420375a10379e0e1c0ab3058",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-9149",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-9149",
"summary": "A flaw was found in libsolv. This heap buffer overflow vulnerability occurs when a victim processes a specially crafted `.solv` file containing negative size values in the `repo_add_solv` function. This leads to an undersized memory allocation and a subsequent out-of-bounds write. An attacker could exploit this to cause a denial of service (DoS).",
"evidence": "osv:UBUNTU-CVE-2026-9149",
"products": [
{
"name": {
"value": "libsolv",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.6.11-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.6.11-1build1",
"evidence": "/affected/0/versions"
},
{
"value": "0.6.11-1.1",
"evidence": "/affected/0/versions"
},
{
"value": "0.6.11-1.1ubuntu0.1~esm1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "libsolv",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.6.28-2build1",
"evidence": "/affected/1/versions"
},
{
"value": "0.6.30-1build1",
"evidence": "/affected/1/versions"
},
{
"value": "0.6.30-1ubuntu0.1~esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "libsolv",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.6.35-2ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "0.6.35-2ubuntu2",
"evidence": "/affected/2/versions"
},
{
"value": "0.6.36-1",
"evidence": "/affected/2/versions"
},
{
"value": "0.6.36-2",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "libsolv",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.17-2",
"evidence": "/affected/3/versions"
},
{
"value": "0.7.20-1",
"evidence": "/affected/3/versions"
},
{
"value": "0.7.20-1build2",
"evidence": "/affected/3/versions"
},
{
"value": "0.7.20-1ubuntu0.22.04.1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "libsolv",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.24-1",
"evidence": "/affected/4/versions"
},
{
"value": "0.7.25-1",
"evidence": "/affected/4/versions"
},
{
"value": "0.7.26-1",
"evidence": "/affected/4/versions"
},
{
"value": "0.7.26-2",
"evidence": "/affected/4/versions"
},
{
"value": "0.7.27-1",
"evidence": "/affected/4/versions"
},
{
"value": "0.7.27-2",
"evidence": "/affected/4/versions"
},
{
"value": "0.7.27-2build1",
"evidence": "/affected/4/versions"
},
{
"value": "0.7.28-1",
"evidence": "/affected/4/versions"
},
{
"value": "0.7.28-1build1",
"evidence": "/affected/4/versions"
},
{
"value": "0.7.28-1build2",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "libsolv",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.31-1build1",
"evidence": "/affected/5/versions"
},
{
"value": "0.7.32-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "libsolv",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.35-1build1",
"evidence": "/affected/6/versions"
},
{
"value": "0.7.38-1",
"evidence": "/affected/6/versions"
},
{
"value": "0.7.39-1",
"evidence": "/affected/6/versions"
},
{
"value": "0.7.39-1build1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "libsolv",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.7.32-1",
"evidence": "/affected/7/versions"
},
{
"value": "0.7.35-1",
"evidence": "/affected/7/versions"
},
{
"value": "0.7.35-1build1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-9149",
"aliases": [
"UBUNTU-CVE-2026-9149"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libsolv",
"purl": "pkg:deb/ubuntu/libsolv?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"0.6.11-1",
"0.6.11-1build1",
"0.6.11-1.1",
"0.6.11-1.1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9149.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libsolv-perl",
"binary_version": "0.6.11-1.1ubuntu0.1~esm1"
},
{
"binary_name": "libsolv-tools",
"binary_version": "0.6.11-1.1ubuntu0.1~esm1"
},
{
"binary_name": "libsolv0",
"binary_version": "0.6.11-1.1ubuntu0.1~esm1"
},
{
"binary_name": "libsolvext0",
"binary_version": "0.6.11-1.1ubuntu0.1~esm1"
},
{
"binary_name": "python-solv",
"binary_version": "0.6.11-1.1ubuntu0.1~esm1"
},
{
"binary_name": "python3-solv",
"binary_version": "0.6.11-1.1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libsolv",
"purl": "pkg:deb/ubuntu/libsolv?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"0.6.28-2build1",
"0.6.30-1build1",
"0.6.30-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9149.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libsolv-perl",
"binary_version": "0.6.30-1ubuntu0.1~esm1"
},
{
"binary_name": "libsolv-tools",
"binary_version": "0.6.30-1ubuntu0.1~esm1"
},
{
"binary_name": "libsolv0",
"binary_version": "0.6.30-1ubuntu0.1~esm1"
},
{
"binary_name": "libsolvext0",
"binary_version": "0.6.30-1ubuntu0.1~esm1"
},
{
"binary_name": "python-solv",
"binary_version": "0.6.30-1ubuntu0.1~esm1"
},
{
"binary_name": "python3-solv",
"binary_version": "0.6.30-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libsolv",
"purl": "pkg:deb/ubuntu/libsolv?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"0.6.35-2ubuntu1",
"0.6.35-2ubuntu2",
"0.6.36-1",
"0.6.36-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9149.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libsolv-perl",
"binary_version": "0.6.36-2"
},
{
"binary_name": "libsolv-tools",
"binary_version": "0.6.36-2"
},
{
"binary_name": "libsolv0",
"binary_version": "0.6.36-2"
},
{
"binary_name": "libsolvext0",
"binary_version": "0.6.36-2"
},
{
"binary_name": "python3-solv",
"binary_version": "0.6.36-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libsolv",
"purl": "pkg:deb/ubuntu/libsolv?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"0.7.17-2",
"0.7.20-1",
"0.7.20-1build2",
"0.7.20-1ubuntu0.22.04.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9149.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libsolv-perl",
"binary_version": "0.7.20-1ubuntu0.22.04.1"
},
{
"binary_name": "libsolv-tools",
"binary_version": "0.7.20-1ubuntu0.22.04.1"
},
{
"binary_name": "libsolv1",
"binary_version": "0.7.20-1ubuntu0.22.04.1"
},
{
"binary_name": "libsolvext1",
"binary_version": "0.7.20-1ubuntu0.22.04.1"
},
{
"binary_name": "python3-solv",
"binary_version": "0.7.20-1ubuntu0.22.04.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libsolv",
"purl": "pkg:deb/ubuntu/libsolv?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"0.7.24-1",
"0.7.25-1",
"0.7.26-1",
"0.7.26-2",
"0.7.27-1",
"0.7.27-2",
"0.7.27-2build1",
"0.7.28-1",
"0.7.28-1build1",
"0.7.28-1build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9149.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libsolv-perl",
"binary_version": "0.7.28-1build2"
},
{
"binary_name": "libsolv-tools",
"binary_version": "0.7.28-1build2"
},
{
"binary_name": "libsolv1",
"binary_version": "0.7.28-1build2"
},
{
"binary_name": "libsolvext1",
"binary_version": "0.7.28-1build2"
},
{
"binary_name": "python3-solv",
"binary_version": "0.7.28-1build2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libsolv",
"purl": "pkg:deb/ubuntu/libsolv?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"0.7.31-1build1",
"0.7.32-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9149.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libsolv-perl",
"binary_version": "0.7.32-1"
},
{
"binary_name": "libsolv-tools",
"binary_version": "0.7.32-1"
},
{
"binary_name": "libsolv1",
"binary_version": "0.7.32-1"
},
{
"binary_name": "libsolvext1",
"binary_version": "0.7.32-1"
},
{
"binary_name": "python3-solv",
"binary_version": "0.7.32-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libsolv",
"purl": "pkg:deb/ubuntu/libsolv?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"0.7.35-1build1",
"0.7.38-1",
"0.7.39-1",
"0.7.39-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9149.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libsolv-perl",
"binary_version": "0.7.39-1build1"
},
{
"binary_name": "libsolv-tools",
"binary_version": "0.7.39-1build1"
},
{
"binary_name": "libsolv1",
"binary_version": "0.7.39-1build1"
},
{
"binary_name": "libsolvext1",
"binary_version": "0.7.39-1build1"
},
{
"binary_name": "python3-solv",
"binary_version": "0.7.39-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libsolv",
"purl": "pkg:deb/ubuntu/libsolv?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"0.7.32-1",
"0.7.35-1",
"0.7.35-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-9149.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libsolv-perl",
"binary_version": "0.7.35-1build1"
},
{
"binary_name": "libsolv-tools",
"binary_version": "0.7.35-1build1"
},
{
"binary_name": "libsolv1",
"binary_version": "0.7.35-1build1"
},
{
"binary_name": "libsolvext1",
"binary_version": "0.7.35-1build1"
},
{
"binary_name": "python3-solv",
"binary_version": "0.7.35-1build1"
}
]
}
}
],
"modified": "2026-10-17T13:01:17.462816966Z",
"provider": "osv",
"upstream": [
"CVE-2026-9149"
],
"references": [
"https://ubuntu.com/security/CVE-2026-9149",
"https://www.cve.org/CVERecord?id=CVE-2026-9149",
"https://bugzilla.redhat.com/show_bug.cgi?id=2460380",
"https://github.com/openSUSE/libsolv/pull/617",
"https://github.com/openSUSE/libsolv/commit/210386037c892a720972ad35a3d8f7073b4d763b",
"https://access.redhat.com/security/cve/CVE-2026-9149"
]
},
"related_cves": [
{
"value": "CVE-2026-9149",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361515,
"published_at": "2026-05-21T00:16:00+00:00"
}