CVE-2026-43633: falha crítica em hestiacp
HestiaCP 1.9.0-1.9.4 Deserialization RCE via Web Terminal
Publicada em · Atualizada em
48Vexday Risk Score
Sem sinal de exploração. Ela tem prova de conceito pública.
ssvc Attendcvss 9.5epss 1.5%
probabilidade de exploração
1.5%top 27% das CVEs
exploração observada
nãonenhuma fonte reporta
1 exploit(s) público(s)
HestiaCP versions 1.9.0 through 1.9.4 contain a deserialization vulnerability in the web terminal component caused by a session format mismatch between PHP and Node.js that allows unauthenticated remote attackers to achieve root-level code execution. Attackers can inject crafted data into HTTP headers that are processed by the PHP session handler but incorrectly deserialized by the Node.js web terminal component as trusted session values, resulting in arbitrary command execution on systems with the web terminal feature enabled.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Produtos afetados
hestiacp · hestiacpPoCs públicas encontradas — 1
cve_referencemercuryiss.com.au/hestiacp-unauthenticated-rce-ip-spoofing-cve-2026-43633-cve-2026-43634não verificado⚠ Recursos públicos, para você avaliar a exposição de sistemas que controla ou está autorizado a testar. Teste apenas com autorização.
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Referências
https://github.com/hestiacp/hestiacp/commit/854d71b3c1737b0a0d0cc55c926008ffe1f6719bhttps://github.com/hestiacp/hestiacp/issues/5229https://github.com/hestiacp/hestiacp/pull/5244https://mercuryiss.com.au/hestiacp-unauthenticated-rce-ip-spoofing-cve-2026-43633-cve-2026-43634https://www.vulncheck.com/advisories/hestiacp-deserialization-rce-via-web-terminal