UBUNTU-CVE-2026-53534 (CVE-2026-53534)
Vulnerability from osv_ubuntu – Published: 2026-09-17 22:16 – Updated: 2026-09-23 23:31 – Source website
VLAI
Details
JabRef is a desktop application for managing BibTeX and BibLaTeX libraries. Prior to 6.0-alpha.6, when jabsrv or JabRef's built-in HTTP server is enabled, the GET /better-bibtex/cayw endpoint accepts an external command query parameter and CAYWQueryParams.getCommand() passes it through CAYWResource.getCitation() into PushToSublimeText.getCommandLine(). On Unix-like systems, PushToSublimeText combines this untrusted cite-command prefix and citation keys into a string executed through sh -c by ProcessBuilder without shell escaping. A client that can cause a localhost request with application=sublime can inject shell metacharacters and execute operating-system commands as the JabRef user when a valid Sublime Text command path is configured and the victim completes the CAYW selection dialog. The built-in server is disabled by default, so exploitation requires the victim to enable it or run jabsrv. This issue is fixed in version 6.0-alpha.6.
Severity
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jabref",
"binary_version": "2.10+ds-5"
},
{
"binary_name": "jabref-plugin-oo",
"binary_version": "2.10+ds-5"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "jabref",
"purl": "pkg:deb/ubuntu/jabref@2.10+ds-5?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.10+ds-4",
"2.10+ds-5"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jabref",
"binary_version": "3.8.2+ds-12~18.04"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "jabref",
"purl": "pkg:deb/ubuntu/jabref@3.8.2+ds-12~18.04?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.8.2+ds-2",
"3.8.2+ds-3",
"3.8.2+ds-12~18.04"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jabref",
"binary_version": "3.8.2+ds-12"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "jabref",
"purl": "pkg:deb/ubuntu/jabref@3.8.2+ds-12?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.8.2+ds-12"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jabref",
"binary_version": "3.8.2+ds-16"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "jabref",
"purl": "pkg:deb/ubuntu/jabref@3.8.2+ds-16?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.8.2+ds-15",
"3.8.2+ds-16"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jabref",
"binary_version": "3.8.2+ds-17"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "jabref",
"purl": "pkg:deb/ubuntu/jabref@3.8.2+ds-17?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.8.2+ds-17"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jabref",
"binary_version": "3.8.2+ds-18"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "jabref",
"purl": "pkg:deb/ubuntu/jabref@3.8.2+ds-18?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.8.2+ds-17",
"3.8.2+ds-18"
]
}
],
"aliases": [],
"details": "JabRef is a desktop application for managing BibTeX and BibLaTeX libraries. Prior to 6.0-alpha.6, when jabsrv or JabRef\u0027s built-in HTTP server is enabled, the GET /better-bibtex/cayw endpoint accepts an external command query parameter and CAYWQueryParams.getCommand() passes it through CAYWResource.getCitation() into PushToSublimeText.getCommandLine(). On Unix-like systems, PushToSublimeText combines this untrusted cite-command prefix and citation keys into a string executed through sh -c by ProcessBuilder without shell escaping. A client that can cause a localhost request with application=sublime can inject shell metacharacters and execute operating-system commands as the JabRef user when a valid Sublime Text command path is configured and the victim completes the CAYW selection dialog. The built-in server is disabled by default, so exploitation requires the victim to enable it or run jabsrv. This issue is fixed in version 6.0-alpha.6.",
"id": "UBUNTU-CVE-2026-53534",
"modified": "2026-09-23T23:31:21Z",
"published": "2026-09-17T22:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-53534"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53534"
},
{
"type": "REPORT",
"url": "https://github.com/JabRef/jabref/security/advisories/GHSA-m42c-cw93-p629"
},
{
"type": "REPORT",
"url": "https://github.com/JabRef/jabref/commit/b8663fe58e6c87c3927cdb4eeb1f6934d7c3f1d2"
},
{
"type": "REPORT",
"url": "https://github.com/JabRef/jabref/pull/15628"
},
{
"type": "REPORT",
"url": "https://github.com/JabRef/jabref/releases/tag/v6.0-alpha.6"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-53534"
]
}
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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
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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