CVE-2026-61477

An injection vulnerability was found in libvirt's virtual network driver. The network XML parser does not strip newline characters from DNS TXT record value attributes and SRV record domain/target attributes. These values are written verbatim into the dnsmasq configuration file generated by the network driver, allowing a user with permission to define virtual networks to inject arbitrary dnsmasq configuration directives such as dhcp-script, leading to arbitrary command execution as root.

CVSS v3 2.3 LOW

2.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 0.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-61477
https://bugzilla.redhat.com/show_bug.cgi?id=2512066
https://gitlab.com/libvirt/libvirt/-/commit/3cfc77963b512d809348fca07f97fe924fac9a05

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-07 14:17

Updated : 2026-08-14 19:07

NVD link : CVE-2026-61477

Mitre link : CVE-2026-61477

CVE.ORG link : CVE-2026-61477

JSON object : View

Products Affected

No product.

CWE

CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

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