CVE-2026-71965

CyberPanel 2.4.3, fixed in commit eca0c3c, contains an authenticated remote code execution vulnerability in the remote backup feature that allows authenticated attackers to gain root-level SSH access by supplying a malicious remote server address. Attackers can exploit the unverified SSH public key retrieval process to write an attacker-controlled public key directly to /root/.ssh/authorized_keys, granting persistent root access to the host system.

CVSS v4.0

8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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

CVSS v3.1

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.34% chance of exploitation in the next 30 days, 27th percentile

Published

2026-08-10

Updated

2026-08-14

Proof-of-concept exploits (1)

• https://themcsam.github.io/posts/cyberpanel-2.4.3-vulnerabilties/

References

• CVE Record
• NVD entry

Related

• CVE-2026-71964
• CVE-2026-71966
• CVE-2026-71962
• CVE-2026-71969
• CVE-2026-71960
• CVE-2026-7199