CVE-2026-10805 (GCVE-0-2026-10805)

Vulnerability from cvelistv5 – Published: 2026-06-04 05:21 – Updated: 2026-08-24 08:10
VLAI
Title
Networkmanager: networkmanager: local privilege escalation via malformed mud urls in dhclient backend
Summary
A flaw was found in NetworkManager. This local privilege escalation vulnerability exists in NetworkManager's dhclient backend when processing malformed Manufacturer Usage Description (MUD) URLs. A local user can exploit this flaw to escalate privileges by triggering a script via a crafted MUD URL, provided an administrator has explicitly configured NetworkManager to use dhclient. This issue does not affect default configurations of NetworkManager.
Severity
6.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-04 12:38 UTC
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:58555 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:58572 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-10805 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2484613 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Enterprise Linux 8 Unaffected: 1:1.40.16-21.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/o:redhat:enterprise_linux:8::baseos
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Red Hat Red Hat Enterprise Linux 9 Unaffected: 1:1.54.3-5.el9_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/o:redhat:enterprise_linux:9::baseos
Create a notification for this product.
Red Hat Multicluster Engine for Kubernetes     cpe:/a:redhat:multicluster_engine
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Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
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Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack     cpe:/a:redhat:jbosseapxp
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Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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Date Public
2026-06-04 00:00
Credits
Red Hat would like to thank Andrej Tomci for reporting this issue.
Show details on NVD website
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      "id": "CVE-2026-10805",
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      "product_status:fixed": "446",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
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      "cve": "CVE-2026-10805",
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      "product_status:known_affected": "223",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-10805",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-10805.json",
      "version": "3"
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The default configuration on Red Hat Enterprise Linux does not enable `dhclient`. If a custom configuration file, such as `/etc/NetworkManager/conf.d/00-dhcp.conf`, contains `[main] dhcp=dhclient`, remove or comment out this line. After modifying the configuration, restart the NetworkManager service: `sudo systemctl restart NetworkManager` Warning: Restarting the NetworkManager service will temporarily disrupt network connectivity.\"}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in NetworkManager. This local privilege escalation vulnerability exists in NetworkManager\u0027s dhclient backend when processing malformed Manufacturer Usage Description (MUD) URLs. A local user can exploit this flaw to escalate privileges by triggering a script via a crafted MUD URL, provided an administrator has explicitly configured NetworkManager to use dhclient. This issue does not affect default configurations of NetworkManager.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-78\", \"description\": \"Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2026-08-24T08:10:12.843Z\"}, \"x_redhatCweChain\": \"CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-10805\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-24T08:10:12.843Z\", \"dateReserved\": \"2026-06-04T05:10:00.738Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2026-06-04T05:21:34.080Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
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  }
}



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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

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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.


Detection rules are retrieved from Rulezet.