ubuntu-cve-2026-77643
Vulnerability from osv_ubuntu
Published
2026-08-27 00:00
Modified
2026-08-27 00:00
Summary
Details
(A cross-site scripting vulnerability in queryparser/termgenerator_int ...)
Severity
4.4 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxapian22",
"binary_version": "1.2.16-2ubuntu1"
},
{
"binary_name": "xapian-examples",
"binary_version": "1.2.16-2ubuntu1"
},
{
"binary_name": "xapian-tools",
"binary_version": "1.2.16-2ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "xapian-core",
"purl": "pkg:deb/ubuntu/xapian-core@1.2.16-2ubuntu1?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.2.15-2",
"1.2.16-2",
"1.2.16-2ubuntu1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxapian22v5",
"binary_version": "1.2.22-2"
},
{
"binary_name": "xapian-examples",
"binary_version": "1.2.22-2"
},
{
"binary_name": "xapian-tools",
"binary_version": "1.2.22-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "xapian-core",
"purl": "pkg:deb/ubuntu/xapian-core@1.2.22-2?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.2.21-1.2",
"1.2.22-1",
"1.2.22-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxapian30",
"binary_version": "1.4.5-1ubuntu0.1"
},
{
"binary_name": "xapian-examples",
"binary_version": "1.4.5-1ubuntu0.1"
},
{
"binary_name": "xapian-tools",
"binary_version": "1.4.5-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "xapian-core",
"purl": "pkg:deb/ubuntu/xapian-core@1.4.5-1ubuntu0.1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.4.4-2",
"1.4.5-1",
"1.4.5-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxapian30",
"binary_version": "1.4.14-2"
},
{
"binary_name": "xapian-examples",
"binary_version": "1.4.14-2"
},
{
"binary_name": "xapian-tools",
"binary_version": "1.4.14-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "xapian-core",
"purl": "pkg:deb/ubuntu/xapian-core@1.4.14-2?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.4.12-1",
"1.4.14-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxapian30",
"binary_version": "1.4.18-4"
},
{
"binary_name": "xapian-examples",
"binary_version": "1.4.18-4"
},
{
"binary_name": "xapian-tools",
"binary_version": "1.4.18-4"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "xapian-core",
"purl": "pkg:deb/ubuntu/xapian-core@1.4.18-4?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.4.18-3build1",
"1.4.18-4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxapian30",
"binary_version": "1.4.22-1build1"
},
{
"binary_name": "xapian-examples",
"binary_version": "1.4.22-1build1"
},
{
"binary_name": "xapian-tools",
"binary_version": "1.4.22-1build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "xapian-core",
"purl": "pkg:deb/ubuntu/xapian-core@1.4.22-1build1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.4.22-1",
"1.4.22-1build1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libxapian30",
"binary_version": "1.4.31-2"
},
{
"binary_name": "xapian-examples",
"binary_version": "1.4.31-2"
},
{
"binary_name": "xapian-tools",
"binary_version": "1.4.31-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "xapian-core",
"purl": "pkg:deb/ubuntu/xapian-core@1.4.31-2?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.4.29-3",
"1.4.29-3build1",
"1.4.31-2"
]
}
],
"aliases": [],
"details": "(A cross-site scripting vulnerability in queryparser/termgenerator_int ...)",
"id": "UBUNTU-CVE-2026-77643",
"modified": "2026-08-27T00:00:00Z",
"published": "2026-08-27T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-77643"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-77643"
},
{
"type": "REPORT",
"url": "https://lists.xapian.org/pipermail/xapian-devel/2026-August/003429.html"
},
{
"type": "REPORT",
"url": "https://trac.xapian.org/wiki/SecurityFixes/2018-07-02#a2026-08-13update"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-77643"
]
}
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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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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