Exploitation evidence
Not listed in the latest downloaded CISA KEV catalog. This does not establish an absence of exploitation.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
Drupal / Drupal core
Default status: Not specified
- affected: 0.0.0 to < 10.5.12 (semver)
- affected: 10.6.0 to < 10.6.11 (semver)
- affected: 11.2.0 to < 11.2.14 (semver)
- affected: 11.3.0 to < 11.3.12 (semver)
- affected: 0.0.0 to < 11.0.* (semver)
- affected: 0.0.0 to < 11.1.* (semver)
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
CVE Program record ↗ · Download tracked evidence as JSON
Monitored source mentions
Shared CVE identifiers link source mentions; they do not establish that the reports describe the same incident.
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.00353,
"percentile": 0.29356
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.00353,
"percentile": 0.29207
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.00353,
"percentile": 0.29155
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.00353,
"percentile": 0.29136
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.00353,
"percentile": 0.29109
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.00353,
"percentile": 0.29071
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.00353,
"percentile": 0.29063
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.00353,
"percentile": 0.29061
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.00353,
"percentile": 0.28967
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.00353,
"percentile": 0.28919
}03 Nov 2026, 02:22 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-55803",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-13T18:23:53.103260Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-13T18:24:17.938Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://www.drupal.org/project/drupal",
"product": "Drupal core",
"repo": "https://git.drupalcode.org/project/drupal",
"vendor": "Drupal",
"versions": [
{
"lessThan": "10.5.12",
"status": "affected",
"version": "0.0.0",
"versionType": "semver"
},
{
"lessThan": "10.6.11",
"status": "affected",
"version": "10.6.0",
"versionType": "semver"
},
{
"lessThan": "11.2.14",
"status": "affected",
"version": "11.2.0",
"versionType": "semver"
},
{
"lessThan": "11.3.12",
"status": "affected",
"version": "11.3.0",
"versionType": "semver"
},
{
"lessThan": "11.0.*",
"status": "affected",
"version": "0.0.0",
"versionType": "semver"
},
{
"lessThan": "11.1.*",
"status": "affected",
"version": "0.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Michael Maturi (michaelmaturi)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Björn Brala (bbrala)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Sascha Grossenbacher (berdir)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Lee Rowlands (larowlan)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Dave Long (longwave)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Drew Webber (mcdruid)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Anna Kalata (akalata)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Benji Fisher (benjifisher)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Damien McKenna (damienmckenna)"
},
{
"lang": "en",
"type": "coordinator",
"value": "David Strauss (david strauss)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Neil Drumm (drumm)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Greg Knaddison (greggles)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Tim Hestenes Lehnen (hestenet)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Lee Rowlands (larowlan)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Dave Long (longwave)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Drew Webber (mcdruid)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Juraj Nemec (poker10)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Ra Mänd (ram4nd)"
},
{
"lang": "en",
"type": "coordinator",
"value": "Jess (xjm)"
}
],
"datePublic": "2026-06-17T18:56:50.000Z",
"descriptions": [
{
"lang": "en",
"value": "Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal core allows Object Injection. This issue affects Drupal core versions: from 0.0.0 to 10.5.12, from 10.6.0 to 10.6.11, from 11.2.0 to 11.2.14, from 11.3.0 to 11.3.12, from 0.0.0 to 11.0.*, from 0.0.0 to 11.1.*."
}
],
"impacts": [
{
"capecId": "CAPEC-586",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-586 Object Injection"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-915",
"description": "CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-10T21:46:38.051Z",
"orgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
"shortName": "drupal"
},
"references": [
{
"url": "https://www.drupal.org/sa-core-2026-005"
}
],
"title": "Drupal core - Critical - PHP object injection - SA-CORE-2026-005"
}
},
"cveMetadata": {
"assignerOrgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
"assignerShortName": "drupal",
"cveId": "CVE-2026-55803",
"datePublished": "2026-07-10T21:46:38.051Z",
"dateReserved": "2026-06-17T14:59:52.673Z",
"dateUpdated": "2026-07-13T18:24:17.938Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}