FKIE_CVE-2026-31979
Vulnerability from fkie_nvd - Published: 2026-03-11 20:16 - Updated: 2026-06-17 10:347.8 (High) - CVSS:3.1/
| URL | Tags | ||
|---|---|---|---|
| security-advisories@github.com | https://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-44wm-q286-ghq3 | Exploit, Mitigation, Vendor Advisory |
| Vendor | Product | Version | |
|---|---|---|---|
| himmelblau-idm | himmelblau | * | |
| himmelblau-idm | himmelblau | * |
{
"affected": [
{
"affectedData": [
{
"product": "himmelblau",
"vendor": "himmelblau-idm",
"versions": [
{
"status": "affected",
"version": "\u003e= 1.0.0, \u003c 2.3.8"
},
{
"status": "affected",
"version": "\u003e= 3.0.0-alpha, \u003c 3.1.0"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:himmelblau-idm:himmelblau:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C66E65F5-D68D-43EC-B26B-7680565AA1DD",
"versionEndExcluding": "2.3.8",
"versionStartIncluding": "1.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:himmelblau-idm:himmelblau:*:*:*:*:*:*:*:*",
"matchCriteriaId": "1484B22D-EA09-40C2-B943-0EEAB8D2FA99",
"versionEndExcluding": "3.1.0",
"versionStartIncluding": "3.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. Prior to 3.1.0 and 2.3.8, the himmelblaud-tasks daemon, running as root, writes Kerberos cache files under /tmp/krb5cc_\u003cuid\u003e without symlink protections. Since commit 87a51ee, PrivateTmp is explicitly removed from the tasks daemon\u0027s systemd hardening, exposing it to the host /tmp. A local user can exploit this via symlink attacks to chown or overwrite arbitrary files, achieving local privilege escalation. This vulnerability is fixed in 3.1.0 and 2.3.8."
},
{
"lang": "es",
"value": "Himmelblau es una suite de interoperabilidad para Microsoft Azure Entra ID e Intune. Antes de las versiones 3.1.0 y 2.3.8, el demonio himmelblaud-tasks, ejecut\u00e1ndose como root, escribe archivos de cach\u00e9 de Kerberos bajo /tmp/krb5cc_ sin protecciones de enlaces simb\u00f3licos. Desde el commit 87a51ee, PrivateTmp se elimina expl\u00edcitamente del endurecimiento de systemd del demonio de tareas, exponi\u00e9ndolo al /tmp del host. Un usuario local puede explotar esto mediante ataques de enlaces simb\u00f3licos para cambiar el propietario (chown) o sobrescribir archivos arbitrarios, logrando una escalada de privilegios local. Esta vulnerabilidad est\u00e1 corregida en las versiones 3.1.0 y 2.3.8."
}
],
"id": "CVE-2026-31979",
"lastModified": "2026-06-17T10:34:52.727",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 6.0,
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-31979",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-11T20:07:04.015032Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-03-11T20:16:17.607",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Mitigation",
"Vendor Advisory"
],
"url": "https://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-44wm-q286-ghq3"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-59"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
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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.
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- 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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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