01 Record
CVE-2026-105429
NetBird client SSH config Match line injection via peer FQDN or hostname allows local command execution
HighPUBLISHEDCNA: securin
CNA base score8.9 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
02 Description
NetBird client SSH config Match line injection via peer FQDN or hostname allows local command execution
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.58% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 47.7% of scored records. A rank, not a probability.
- NVD base score
- 8.9 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-14 04:33Z15 DAYS AGO
- Last updated
- 2026-10-16 15:31Z12 DAYS AGO
- Reserved
- 2026-10-05
- Assigning CNA
- securin
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.9)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- Weaknesses
- Data version
- 5.2
- Document digest
- df19168adbeb7db70071f6c1dbf90210140e95e9b99a6a397310c0cb3c449fe9
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comGHSA-xmg2-v32j-x2hfhttps://github.com/netbirdio/netbird/security/advisories/GHSA-xmg2-v32j-x2hf
- github.comFix pull request #6805https://github.com/netbirdio/netbird/pull/6805
- github.comNetBird v0.74.7 releasehttps://github.com/netbirdio/netbird/releases/tag/v0.74.7
07 Remediation
Upgrade the NetBird client to version 0.74.7 or later. In this version, buildHostPatterns accepts a peer FQDN or hostname only if it is a plain DNS name, and rejects quotes, whitespace, newlines, commas and SSH pattern metacharacters (pull request #6805).