CVE-2026-21715 (GCVE-0-2026-21715)
Vulnerability from cvelistv5
Published
2026-03-30 19:07
Modified
2026-04-01 15:02
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync.native()` without the required read permission checks, while all comparable filesystem functions correctly enforce them.
As a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync.native()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories.
This vulnerability affects **20.x, 22.x, 24.x, and 25.x** processes using the Permission Model where `--allow-fs-read` is intentionally restricted.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| nodejs | node |
Version: 20.20.1 ≤ 20.20.1 Version: 22.22.1 ≤ 22.22.1 Version: 24.14.0 ≤ 24.14.0 Version: 25.8.1 ≤ 25.8.1 Version: 4.0 ≤ Version: 5.0 ≤ Version: 6.0 ≤ Version: 7.0 ≤ Version: 8.0 ≤ Version: 9.0 ≤ Version: 10.0 ≤ Version: 11.0 ≤ Version: 12.0 ≤ Version: 13.0 ≤ Version: 14.0 ≤ Version: 15.0 ≤ Version: 16.0 ≤ Version: 17.0 ≤ Version: 18.0 ≤ Version: 19.0 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-21715",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-01T14:55:13.031405Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-732",
"description": "CWE-732 Incorrect Permission Assignment for Critical Resource",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-01T15:02:10.706Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "node",
"vendor": "nodejs",
"versions": [
{
"lessThanOrEqual": "20.20.1",
"status": "affected",
"version": "20.20.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "22.22.1",
"status": "affected",
"version": "22.22.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "24.14.0",
"status": "affected",
"version": "24.14.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "25.8.1",
"status": "affected",
"version": "25.8.1",
"versionType": "semver"
},
{
"lessThan": "4.*",
"status": "affected",
"version": "4.0",
"versionType": "semver"
},
{
"lessThan": "5.*",
"status": "affected",
"version": "5.0",
"versionType": "semver"
},
{
"lessThan": "6.*",
"status": "affected",
"version": "6.0",
"versionType": "semver"
},
{
"lessThan": "7.*",
"status": "affected",
"version": "7.0",
"versionType": "semver"
},
{
"lessThan": "8.*",
"status": "affected",
"version": "8.0",
"versionType": "semver"
},
{
"lessThan": "9.*",
"status": "affected",
"version": "9.0",
"versionType": "semver"
},
{
"lessThan": "10.*",
"status": "affected",
"version": "10.0",
"versionType": "semver"
},
{
"lessThan": "11.*",
"status": "affected",
"version": "11.0",
"versionType": "semver"
},
{
"lessThan": "12.*",
"status": "affected",
"version": "12.0",
"versionType": "semver"
},
{
"lessThan": "13.*",
"status": "affected",
"version": "13.0",
"versionType": "semver"
},
{
"lessThan": "14.*",
"status": "affected",
"version": "14.0",
"versionType": "semver"
},
{
"lessThan": "15.*",
"status": "affected",
"version": "15.0",
"versionType": "semver"
},
{
"lessThan": "16.*",
"status": "affected",
"version": "16.0",
"versionType": "semver"
},
{
"lessThan": "17.*",
"status": "affected",
"version": "17.0",
"versionType": "semver"
},
{
"lessThan": "18.*",
"status": "affected",
"version": "18.0",
"versionType": "semver"
},
{
"lessThan": "19.*",
"status": "affected",
"version": "19.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync.native()` without the required read permission checks, while all comparable filesystem functions correctly enforce them.\r\n\r\nAs a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync.native()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories.\r\n\r\nThis vulnerability affects **20.x, 22.x, 24.x, and 25.x** processes using the Permission Model where `--allow-fs-read` is intentionally restricted."
}
],
"metrics": [
{
"cvssV3_0": {
"baseScore": 3.3,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"version": "3.0"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-30T19:07:28.507Z",
"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"shortName": "hackerone"
},
"references": [
{
"url": "https://nodejs.org/en/blog/vulnerability/march-2026-security-releases"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"assignerShortName": "hackerone",
"cveId": "CVE-2026-21715",
"datePublished": "2026-03-30T19:07:28.507Z",
"dateReserved": "2026-01-04T15:00:06.574Z",
"dateUpdated": "2026-04-01T15:02:10.706Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…