High
simple-git: unsafe-operations plugin bypass via git long-option abbreviation (--receive-p/--exe) -> command execution (residual of CVE-2026-28291)
Type: advisorySources: OSV
simple-git, an interface for running git commands in any node.js application, enables applications to execute Git operations from JavaScript. Prior to 4.0.0, the default blockUnsafeOperationsPlugin compares parsed option names with literal dangerous option spellings while Git accepts unambiguous long-option abbreviations. Attacker-influenced push arguments such as abbreviated --receive-pack or --exec forms can therefore bypass detectVulnerableFlags, reach git push against a local or file remote or an attacker-influenced receive-pack target, and cause Git to invoke an attacker-selected command in consumers that expose those arguments. The clone-side abbreviation handling does not protect the push path. This issue is fixed in 4.0.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-102827
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 18:31 UTC · Revision 1
Source evidence
simple-git: unsafe-operations plugin bypass via git long-option abbreviation (--receive-p/--exe) -> command execution (residual of CVE-2026-28291)
core-osv · Original sourcePublished 29 Sept 2026, 18:39 UTC
simple-git, an interface for running git commands in any node.js application, enables applications to execute Git operations from JavaScript. Prior to 4.0.0, the default blockUnsafeOperationsPlugin compares parsed option names with literal dangerous option spellings while Git accepts unambiguous long-option abbreviations. Attacker-influenced push arguments such as abbreviated --receive-pack or --exec forms can therefore bypass detectVulnerableFlags, reach git push against a local or file remote or an attacker-influenced receive-pack target, and cause Git to invoke an attacker-selected command in consumers that expose those arguments. The clone-side abbreviation handling does not protect the push path. This issue is fixed in 4.0.0.
osv:CVE-2026-102827
Complete source record
{
"id": "3653853b910d38a1063b22a4ac77db6f8d2dfb6cef305163887989d441de4beb",
"url": "https://osv.dev/vulnerability/CVE-2026-102827",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "simple-git: unsafe-operations plugin bypass via git long-option abbreviation (--receive-p/--exe) -> command execution (residual of CVE-2026-28291)",
"summary": "simple-git, an interface for running git commands in any node.js application, enables applications to execute Git operations from JavaScript. Prior to 4.0.0, the default blockUnsafeOperationsPlugin compares parsed option names with literal dangerous option spellings while Git accepts unambiguous long-option abbreviations. Attacker-influenced push arguments such as abbreviated --receive-pack or --exec forms can therefore bypass detectVulnerableFlags, reach git push against a local or file remote or an attacker-influenced receive-pack target, and cause Git to invoke an attacker-selected command in consumers that expose those arguments. The clone-side abbreviation handling does not protect the push path. This issue is fixed in 4.0.0.",
"evidence": "osv:CVE-2026-102827",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-102827",
"aliases": [
"CVE-2026-102827",
"GHSA-858h-whjf-mvg5"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
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"type": "GIT",
"events": [
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{
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{
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}
],
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{
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],
"source": "CPE_RANGE"
},
{
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],
"modified": "2026-10-28T02:30:22.478888928Z",
"provider": "osv",
"references": [
"https://github.com/steveukx/git-js/releases/tag/simple-git@4.0.0",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102827.json",
"https://github.com/steveukx/git-js/security/advisories/GHSA-858h-whjf-mvg5",
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"https://github.com/steveukx/git-js/commit/98864c678444d9336357c844efa4fd5a7984c0d7",
"https://github.com/steveukx/git-js/pull/1193"
],
"provider_metadata": {
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],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102827.json"
}
},
"related_cves": [
{
"value": "CVE-2026-102827",
"evidence": "/id"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 488507,
"published_at": "2026-09-29T18:39:57.688+00:00"
}