CVE-2026-28291
Full vulnerability record from the local CVENow database.
Description
simple-git enables running native Git commands from JavaScript. Versions up to and including 3.31.1 allow execution of arbitrary commands through Git option manipulation, bypassing safety checks meant to block dangerous options like -u and --upload-pack. The flaw stems from an incomplete fix for CVE-2022-25860, as Git's flexible option parsing allows numerous character combinations (e.g., -vu, -4u, -nu) to circumvent the regular-expression-based blocklist in the unsafe operations plugin. Due to the virtually infinite number of valid option variants that Git accepts, a complete blocklist-based mitigation may be infeasible without fully emulating Git's option parsing behavior. This issue has been fixed in version 3.32.0.
Severity
HIGH
CVSS score
8.1
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-04-13 18:16:28.760000
Last modified
2026-10-26 22:10:00.163000
View original CVE JSON
{
"id": "CVE-2026-28291",
"sourceIdentifier": "[email protected]",
"published": "2026-04-13T18:16:28.760",
"lastModified": "2026-10-26T22:10:00.163",
"vulnStatus": "Modified",
"cveTags": [],
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{
"lang": "en",
"value": "simple-git enables running native Git commands from JavaScript. Versions up to and including 3.31.1 allow execution of arbitrary commands through Git option manipulation, bypassing safety checks meant to block dangerous options like -u and --upload-pack. The flaw stems from an incomplete fix for CVE-2022-25860, as Git's flexible option parsing allows numerous character combinations (e.g., -vu, -4u, -nu) to circumvent the regular-expression-based blocklist in the unsafe operations plugin. Due to the virtually infinite number of valid option variants that Git accepts, a complete blocklist-based mitigation may be infeasible without fully emulating Git's option parsing behavior. This issue has been fixed in version 3.32.0."
},
{
"lang": "es",
"value": "simple-git permite ejecutar comandos nativos de Git desde JavaScript. Las versiones hasta la 3.31.1 inclusive permiten la ejecución de comandos arbitrarios mediante la manipulación de opciones de Git, eludiendo las comprobaciones de seguridad destinadas a bloquear opciones peligrosas como -u y --upload-pack. La vulnerabilidad se deriva de una corrección incompleta para CVE-2022-25860, ya que el análisis flexible de opciones de Git permite numerosas combinaciones de caracteres (por ejemplo, -vu, -4u, -nu) para eludir la lista de bloqueo basada en expresiones regulares en el plugin de operaciones inseguras. Debido al número prácticamente infinito de variantes de opciones válidas que Git acepta, una mitigación completa basada en listas de bloqueo puede ser inviable sin emular completamente el comportamiento de análisis de opciones de Git. Este problema ha sido corregido en la versión 3.32.0."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "steveukx",
"product": "git-js",
"versions": [
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"status": "affected"
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{
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"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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}