CVE-2026-44088 — Remote Code Execution in SzafirHost
SzafirHost verifies the signature of the downloaded JAR file using class JarInputStream (reading from the beginning of the file), but loads classes using class JarFile/URLClassL…
Published: 2026-05-15 · CVSS: 8.6 · CVSS 4.0
SzafirHost verifies the signature of the downloaded JAR file using class JarInputStream (reading from the beginning of the file), but loads classes using class JarFile/URLClassLoader (reading the Central Directory from the end). It can lead to remote code execution by allowing an attacker to combine a genuine, signed JAR file with a malicious ZIP file, causing the verification to pass but the malicious class to be loaded. This issue was fixed in version 1.2.1.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7