CVE-2026-5271 (GCVE-0-2026-5271)
Vulnerability from cvelistv5
Published
2026-04-01 13:48
Modified
2026-04-01 23:12
Severity ?
VLAI Severity ?
EPSS score ?
Summary
pymanager included the current working directory in sys.path meaning modules could be shadowed by modules in the current working directory. As a result, if a user executes a pymanager-generated command (e.g., pip, pytest)
from an attacker-controlled directory, a malicious module in that
directory can be imported and executed instead of the intended package.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Python Software Foundation | pymanager |
Version: 26.0 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-5271",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-01T17:58:52.079116Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-427",
"description": "CWE-427 Uncontrolled Search Path Element",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-01T17:58:58.338Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/python/pymanager/security/advisories/GHSA-jr5x-hgm4-rrm6"
}
],
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2026-04-01T23:12:18.741Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/04/01/5"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "pymanager",
"repo": "https://github.com/python/pymanager",
"vendor": "Python Software Foundation",
"versions": [
{
"lessThan": "26.1",
"status": "affected",
"version": "26.0",
"versionType": "python"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "remediation developer",
"value": "Steve Dower"
},
{
"lang": "en",
"type": "reporter",
"value": "LAKSHMIKANTHAN K"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "pymanager included the current working directory in sys.path meaning modules could be shadowed by modules in the current working directory.\u0026nbsp;As a result, if a user executes a pymanager-generated command (e.g., \u003ccode\u003epip\u003c/code\u003e, \u003ccode\u003epytest\u003c/code\u003e)\n from an attacker-controlled directory, a malicious module in that \ndirectory can be imported and executed instead of the intended package."
}
],
"value": "pymanager included the current working directory in sys.path meaning modules could be shadowed by modules in the current working directory.\u00a0As a result, if a user executes a pymanager-generated command (e.g., pip, pytest)\n from an attacker-controlled directory, a malicious module in that \ndirectory can be imported and executed instead of the intended package."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "LOCAL",
"baseScore": 5.6,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "ACTIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-01T15:38:55.523Z",
"orgId": "28c92f92-d60d-412d-b760-e73465c3df22",
"shortName": "PSF"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://github.com/python/pymanager/security/advisories/GHSA-jr5x-hgm4-rrm6"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Possible to hijack modules in current working directory",
"x_generator": {
"engine": "Vulnogram 0.6.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22",
"assignerShortName": "PSF",
"cveId": "CVE-2026-5271",
"datePublished": "2026-04-01T13:48:07.534Z",
"dateReserved": "2026-03-31T20:02:35.393Z",
"dateUpdated": "2026-04-01T23:12:18.741Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://www.openwall.com/lists/oss-security/2026/04/01/5\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2026-04-01T23:12:18.741Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-5271\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-01T17:58:52.079116Z\"}}}], \"references\": [{\"url\": \"https://github.com/python/pymanager/security/advisories/GHSA-jr5x-hgm4-rrm6\", \"tags\": [\"exploit\"]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-427\", \"description\": \"CWE-427 Uncontrolled Search Path Element\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-01T17:57:50.666Z\"}}], \"cna\": {\"title\": \"Possible to hijack modules in current working directory\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Steve Dower\"}, {\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"LAKSHMIKANTHAN K\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 5.6, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"ACTIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://github.com/python/pymanager\", \"vendor\": \"Python Software Foundation\", \"product\": \"pymanager\", \"versions\": [{\"status\": \"affected\", \"version\": \"26.0\", \"lessThan\": \"26.1\", \"versionType\": \"python\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/python/pymanager/security/advisories/GHSA-jr5x-hgm4-rrm6\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.6.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"pymanager included the current working directory in sys.path meaning modules could be shadowed by modules in the current working directory.\\u00a0As a result, if a user executes a pymanager-generated command (e.g., pip, pytest)\\n from an attacker-controlled directory, a malicious module in that \\ndirectory can be imported and executed instead of the intended package.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"pymanager included the current working directory in sys.path meaning modules could be shadowed by modules in the current working directory.\u0026nbsp;As a result, if a user executes a pymanager-generated command (e.g., \u003ccode\u003epip\u003c/code\u003e, \u003ccode\u003epytest\u003c/code\u003e)\\n from an attacker-controlled directory, a malicious module in that \\ndirectory can be imported and executed instead of the intended package.\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"28c92f92-d60d-412d-b760-e73465c3df22\", \"shortName\": \"PSF\", \"dateUpdated\": \"2026-04-01T15:38:55.523Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-5271\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-01T23:12:18.741Z\", \"dateReserved\": \"2026-03-31T20:02:35.393Z\", \"assignerOrgId\": \"28c92f92-d60d-412d-b760-e73465c3df22\", \"datePublished\": \"2026-04-01T13:48:07.534Z\", \"assignerShortName\": \"PSF\"}",
"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…