CVE-2026-29203 (GCVE-0-2026-29203)
Vulnerability from cvelistv5 – Published: 2026-05-08 18:51 – Updated: 2026-05-08 19:22
VLAI?
Summary
A chmod call in the cPanel Nova plugin's Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path under their home directory.
Severity ?
8.8 (High)
CWE
- CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WebPros | cPanel |
Affected:
11.136.0.0 , < 11.136.0.9
(semver)
Affected: 11.134.0.0 , < 11.134.0.25 (semver) Affected: 11.132.0.0 , < 11.132.0.31 (semver) Affected: 11.130.0.0 , < 11.130.0.22 (semver) Affected: 11.126.0.0 , < 11.126.0.58 (semver) Affected: 11.124.0.0 , < 11.124.0.37 (semver) Affected: 11.118.0.0 , < 11.118.0.66 (semver) Affected: 11.110.0.0 , < 11.110.0.116 (semver) Affected: 11.110.0.0 , < 11.110.0.117 (semver) Affected: 11.102.0.0 , < 11.102.0.41 (semver) Affected: 11.94.0.0 , < 11.94.0.30 (semver) Affected: 11.86.0.0 , < 11.86.0.43 (semver) |
||||||||||||
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-29203",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-08T19:19:49.649943Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-08T19:22:12.991Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "cPanel",
"vendor": "WebPros",
"versions": [
{
"lessThan": "11.136.0.9",
"status": "affected",
"version": "11.136.0.0",
"versionType": "semver"
},
{
"lessThan": "11.134.0.25",
"status": "affected",
"version": "11.134.0.0",
"versionType": "semver"
},
{
"lessThan": "11.132.0.31",
"status": "affected",
"version": "11.132.0.0",
"versionType": "semver"
},
{
"lessThan": "11.130.0.22",
"status": "affected",
"version": "11.130.0.0",
"versionType": "semver"
},
{
"lessThan": "11.126.0.58",
"status": "affected",
"version": "11.126.0.0",
"versionType": "semver"
},
{
"lessThan": "11.124.0.37",
"status": "affected",
"version": "11.124.0.0",
"versionType": "semver"
},
{
"lessThan": "11.118.0.66",
"status": "affected",
"version": "11.118.0.0",
"versionType": "semver"
},
{
"lessThan": "11.110.0.116",
"status": "affected",
"version": "11.110.0.0",
"versionType": "semver"
},
{
"lessThan": "11.110.0.117",
"status": "affected",
"version": "11.110.0.0",
"versionType": "semver"
},
{
"lessThan": "11.102.0.41",
"status": "affected",
"version": "11.102.0.0",
"versionType": "semver"
},
{
"lessThan": "11.94.0.30",
"status": "affected",
"version": "11.94.0.0",
"versionType": "semver"
},
{
"lessThan": "11.86.0.43",
"status": "affected",
"version": "11.86.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "cPanel (CentOS 6, CloudLinux 6)",
"vendor": "WebPros",
"versions": [
{
"lessThan": "11.110.114",
"status": "affected",
"version": "11.110.0.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "WP Squared",
"vendor": "WebPros",
"versions": [
{
"lessThan": "11.136.1.10",
"status": "affected",
"version": "11.136.1.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A chmod call in the cPanel Nova plugin\u0027s Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path under their home directory."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-61",
"description": "CWE-61 UNIX Symbolic Link (Symlink) Following",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-08T18:51:05.541Z",
"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"shortName": "hackerone"
},
"references": [
{
"url": "https://support.cpanel.net/hc/en-us/articles/40311543760407-Security-CVE-2026-29203-cPanel-WHM-WP2-Security-Update-May-08-2026"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
"assignerShortName": "hackerone",
"cveId": "CVE-2026-29203",
"datePublished": "2026-05-08T18:51:05.541Z",
"dateReserved": "2026-03-04T15:00:09.267Z",
"dateUpdated": "2026-05-08T19:22:12.991Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-29203\",\"sourceIdentifier\":\"support@hackerone.com\",\"published\":\"2026-05-08T19:16:30.147\",\"lastModified\":\"2026-05-08T20:16:30.013\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A chmod call in the cPanel Nova plugin\u0027s Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path under their home directory.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"support@hackerone.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-61\"}]}],\"references\":[{\"url\":\"https://support.cpanel.net/hc/en-us/articles/40311543760407-Security-CVE-2026-29203-cPanel-WHM-WP2-Security-Update-May-08-2026\",\"source\":\"support@hackerone.com\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-29203\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-08T19:19:49.649943Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-08T19:20:00.014Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"WebPros\", \"product\": \"cPanel\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.136.0.0\", \"lessThan\": \"11.136.0.9\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.134.0.0\", \"lessThan\": \"11.134.0.25\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.132.0.0\", \"lessThan\": \"11.132.0.31\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.130.0.0\", \"lessThan\": \"11.130.0.22\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.126.0.0\", \"lessThan\": \"11.126.0.58\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.124.0.0\", \"lessThan\": \"11.124.0.37\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.118.0.0\", \"lessThan\": \"11.118.0.66\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.110.0.0\", \"lessThan\": \"11.110.0.116\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.110.0.0\", \"lessThan\": \"11.110.0.117\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.102.0.0\", \"lessThan\": \"11.102.0.41\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.94.0.0\", \"lessThan\": \"11.94.0.30\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"11.86.0.0\", \"lessThan\": \"11.86.0.43\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"WebPros\", \"product\": \"cPanel (CentOS 6, CloudLinux 6)\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.110.0.0\", \"lessThan\": \"11.110.114\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"WebPros\", \"product\": \"WP Squared\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.136.1.0\", \"lessThan\": \"11.136.1.10\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://support.cpanel.net/hc/en-us/articles/40311543760407-Security-CVE-2026-29203-cPanel-WHM-WP2-Security-Update-May-08-2026\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A chmod call in the cPanel Nova plugin\u0027s Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path under their home directory.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-61\", \"description\": \"CWE-61 UNIX Symbolic Link (Symlink) Following\"}]}], \"providerMetadata\": {\"orgId\": \"36234546-b8fa-4601-9d6f-f4e334aa8ea1\", \"shortName\": \"hackerone\", \"dateUpdated\": \"2026-05-08T18:51:05.541Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-29203\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-08T19:22:12.991Z\", \"dateReserved\": \"2026-03-04T15:00:09.267Z\", \"assignerOrgId\": \"36234546-b8fa-4601-9d6f-f4e334aa8ea1\", \"datePublished\": \"2026-05-08T18:51:05.541Z\", \"assignerShortName\": \"hackerone\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…