CVE-2026-57999

highCVSS 8.8covered by 1 sourcefirst seen 2026-06-29

luci-app-tailscale-community contains a command injection vulnerability in the tailscale.do_login RPC method that allows authenticated users to execute arbitrary commands as root. The vulnerability exists because user-controlled loginserver and loginserver_authkey parameters are improperly quoted within a double-quoted shell command, allowing shell substitutions like $() to be evaluated by the outer shell before argument processing.

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Exploitation outlook

Moderate exploitation risk1.2% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 64% of all EPSS-scored CVEs.

Advisory coverage (1)

highCVE-2026-57999: luci-app-tailscale-community contains a command injection vulnerability in the tailscale.do_lo…nvd · 2026-06-29

External references

NVD record for CVE-2026-57999

CVE.org record

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