CVE-2026-44088 (GCVE-0-2026-44088)
Vulnerability from cvelistv5 – Published: 2026-05-15 08:48 – Updated: 2026-05-15 11:07
VLAI
EPSS
VEX
Title
Remote Code Execution in SzafirHost
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-15 11:07 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/posts/2026/05/CVE-2026-44088 | third-party-advisory |
| https://www.elektronicznypodpis.pl/ | product |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Krajowa Izba Rozliczeniowa | SzafirHost |
Affected:
0 , < 1.2.1
(semver)
|
guessed |
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