ubuntu-cve-2026-4645
Vulnerability from osv_ubuntu
Published
2026-03-23 14:16
Modified
2026-03-23 14:16
Summary
Details
A flaw was found in the github.com/antchfx/xpath component. A remote attacker could exploit this vulnerability by submitting crafted Boolean XPath expressions that evaluate to true. This can cause an infinite loop in the logicalQuery.Select function, leading to 100% CPU utilization and a Denial of Service (DoS) condition for the affected system.
Severity
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-antchfx-xpath-dev",
"binary_version": "1.1.2-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "golang-github-antchfx-xpath",
"purl": "pkg:deb/ubuntu/golang-github-antchfx-xpath@1.1.2-2?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.2-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-antchfx-xpath-dev",
"binary_version": "1.1.2-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "golang-github-antchfx-xpath",
"purl": "pkg:deb/ubuntu/golang-github-antchfx-xpath@1.1.2-2?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.2-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-antchfx-xpath-dev",
"binary_version": "1.1.2-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "golang-github-antchfx-xpath",
"purl": "pkg:deb/ubuntu/golang-github-antchfx-xpath@1.1.2-2?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1.2-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-golang-x-vuln-dev",
"binary_version": "1.0.1-1ubuntu0.3"
},
{
"binary_name": "govulncheck",
"binary_version": "1.0.1-1ubuntu0.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "golang-golang-x-vuln",
"purl": "pkg:deb/ubuntu/golang-golang-x-vuln@1.0.1-1ubuntu0.3?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.0~git20230201.4c848ed-2build1",
"1.0.1-1",
"1.0.1-1ubuntu0.1",
"1.0.1-1ubuntu0.2",
"1.0.1-1ubuntu0.3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-antchfx-xpath-dev",
"binary_version": "1.3.3-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "golang-github-antchfx-xpath",
"purl": "pkg:deb/ubuntu/golang-github-antchfx-xpath@1.3.3-1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.3.3-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-golang-x-vuln-dev",
"binary_version": "1.0.4-1"
},
{
"binary_name": "govulncheck",
"binary_version": "1.0.4-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "golang-golang-x-vuln",
"purl": "pkg:deb/ubuntu/golang-golang-x-vuln@1.0.4-1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.4-1"
]
}
],
"aliases": [],
"details": "A flaw was found in the `github.com/antchfx/xpath` component. A remote attacker could exploit this vulnerability by submitting crafted Boolean XPath expressions that evaluate to true. This can cause an infinite loop in the `logicalQuery.Select` function, leading to 100% CPU utilization and a Denial of Service (DoS) condition for the affected system.",
"id": "UBUNTU-CVE-2026-4645",
"modified": "2026-03-23T14:16:00Z",
"published": "2026-03-23T14:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-4645"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4645"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4645"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450214"
},
{
"type": "REPORT",
"url": "https://github.com/antchfx/xpath/commit/afd4762cc342af56345a3fb4002a59281fcab494"
},
{
"type": "REPORT",
"url": "https://github.com/antchfx/xpath/issues/121"
},
{
"type": "REPORT",
"url": "https://github.com/golang/vulndb/issues/4526"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-4645"
],
"withdrawn": "2026-04-02T17:29:39Z"
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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