CVE-2026-10805: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Red Hat Red Hat Enterprise Linux 8
A local privilege escalation vulnerability (CVE-2026-10805) was found in NetworkManager's dhclient backend when processing malformed Manufacturer Usage Description (MUD) URLs. This flaw allows a local user to escalate privileges by triggering a script via a crafted MUD URL, but only if an administrator has explicitly configured NetworkManager to use dhclient. Default configurations of NetworkManager are not affected. Red Hat has released security updates for Red Hat Enterprise Linux 8 and 9 to address this issue.
AI Analysis
Technical Summary
CVE-2026-10805 is a local privilege escalation vulnerability in NetworkManager's dhclient backend. It occurs when processing malformed MUD URLs, allowing a local user to escalate privileges by triggering a script. Exploitation requires that NetworkManager is configured to use dhclient, which is not the default setting. The vulnerability has a CVSS 3.1 base score of 6.7 (medium severity) with high impact on confidentiality, integrity, and availability. Red Hat has issued security advisories RHSA-2026:58555 and RHSA-2026:58572 providing patches for Red Hat Enterprise Linux 8 and 9 respectively. The advisories include updated NetworkManager packages that fix this flaw.
Potential Impact
Successful exploitation of this vulnerability allows a local user to escalate privileges on the affected system, potentially gaining administrative rights. The impact includes complete compromise of confidentiality, integrity, and availability of the system. However, exploitation requires local access and specific NetworkManager configuration (use of dhclient backend), limiting the attack surface. Default NetworkManager configurations are not vulnerable.
Mitigation Recommendations
Red Hat has released official patches for Red Hat Enterprise Linux 8 and 9 to address this vulnerability. Users should apply the updated NetworkManager packages as described in Red Hat advisories RHSA-2026:58555 and RHSA-2026:58572. For detailed update instructions, refer to https://access.redhat.com/articles/11258. Systems using default NetworkManager configurations without dhclient backend are not affected. No additional mitigation is required beyond applying the official patches.
CVE-2026-10805: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Red Hat Red Hat Enterprise Linux 8
Description
A local privilege escalation vulnerability (CVE-2026-10805) was found in NetworkManager's dhclient backend when processing malformed Manufacturer Usage Description (MUD) URLs. This flaw allows a local user to escalate privileges by triggering a script via a crafted MUD URL, but only if an administrator has explicitly configured NetworkManager to use dhclient. Default configurations of NetworkManager are not affected. Red Hat has released security updates for Red Hat Enterprise Linux 8 and 9 to address this issue.
CVSS v3.1
Score 6.7medium
Affected software
pkg:rpm/redhat/NetworkManagerRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-10805 is a local privilege escalation vulnerability in NetworkManager's dhclient backend. It occurs when processing malformed MUD URLs, allowing a local user to escalate privileges by triggering a script. Exploitation requires that NetworkManager is configured to use dhclient, which is not the default setting. The vulnerability has a CVSS 3.1 base score of 6.7 (medium severity) with high impact on confidentiality, integrity, and availability. Red Hat has issued security advisories RHSA-2026:58555 and RHSA-2026:58572 providing patches for Red Hat Enterprise Linux 8 and 9 respectively. The advisories include updated NetworkManager packages that fix this flaw.
Potential Impact
Successful exploitation of this vulnerability allows a local user to escalate privileges on the affected system, potentially gaining administrative rights. The impact includes complete compromise of confidentiality, integrity, and availability of the system. However, exploitation requires local access and specific NetworkManager configuration (use of dhclient backend), limiting the attack surface. Default NetworkManager configurations are not vulnerable.
Mitigation Recommendations
Red Hat has released official patches for Red Hat Enterprise Linux 8 and 9 to address this vulnerability. Users should apply the updated NetworkManager packages as described in Red Hat advisories RHSA-2026:58555 and RHSA-2026:58572. For detailed update instructions, refer to https://access.redhat.com/articles/11258. Systems using default NetworkManager configurations without dhclient backend are not affected. No additional mitigation is required beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-rwc7-7qq8-w477
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-10805"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Patch Information
Threat ID: 6a8c4c4aacd9273b499be093
Added to database: 08/24/2026, 13:51:06 UTC
Last enriched: 08/24/2026, 13:58:49 UTC
Last updated: 08/25/2026, 02:51:59 UTC
Views: 4
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