Szafir 軟體發現多項漏洞
Vulnerabilities in Szafir software
Szafir 軟體於 2026 年 10 月 29 日被發現多項安全漏洞，已於 2.0 版修復。
- - 漏洞：CVE-2026-93570（XXE 注入）可讓攻擊者讀取任意檔案。
- CVE-2026-93571（路徑穿越）允許偽造更新檔案。
- CVE-2026-106036（證書驗證失效）使 HTTPS 連線失去驗證。
本次披露的 Szafir 軟體多項漏洞已於 2.0 版修復，使用者應即時升級以避免 XXE、路徑穿越及證書驗證失效等風險。
Vulnerabilities in Szafir software
| CVE ID | CVE-2026-93570 |
| Publication date | 29 October 2026 |
| Vendor | Krajowa Izba Rozliczeniowa |
| Product | Szafir Szafir Weryfikująca |
| Vulnerable versions | All below 2.0.0 build 708 (Szafir) All (Szafir Weryfikująca) |
| Vulnerability type (CWE) | Improper restriction of XML external entity reference (CWE-611) |
| Report source | Report to CERT Polska |
| CVE ID | CVE-2026-93571 |
| Publication date | 29 October 2026 |
| Vendor | Krajowa Izba Rozliczeniowa |
| Product | Szafir |
| Vulnerable versions | All below 2.0.0 build 708 |
| Vulnerability type (CWE) | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) |
| Report source | Report to CERT Polska |
| CVE ID | CVE-2026-106036 |
| Publication date | 29 October 2026 |
| Vendor | Krajowa Izba Rozliczeniowa |
| Product | Szafir |
| Vulnerable versions | All below 2.0.0 build 708 |
| Vulnerability type (CWE) | Improper certificate validation (CWE-295) |
| Report source | Report to CERT Polska |
Description
CERT Polska has received a report about vulnerabilities in Szafir software and participated in coordination of their disclosure.
The vulnerability CVE-2026-93570: Szafir and Szafir Weryfikująca are vulnerable to XML External Entity (XXE) injection. When a user signs or verify a crafted XML file containing a DOCTYPE with an external DTD reference, the parser processes external entities, allowing an attacker to read arbitrary files from the victim's filesystem.
This issue was fixed in Szafir version 2.0 build 708. Szafir Weryfikująca is no longer supported (End of Life) and has not been fixed.
The vulnerability CVE-2026-93571: Szafir is vulnerable to Path Traversal in the uploaded filename. A man-in-the-middle attacker who can reroute update request to their server can prepare arbitrary XML file that will be saved in location chosen by attacker.
The vulnerability CVE-2026-106036: Szafir accepts any client or server certificate without performing certificate and hostname validation, allowing HTTPS connections without authenticating the remote server. An attacker can provide an arbitrary SSL/TLS certificate and cause the application to download an update file from their server.
These issues were fixed in version 2.0 build 708.
Credits
We thank Mikus Teivens from Critical Security for the responsible vulnerability report.
More about the coordinated vulnerability disclosure process at CERT Polska can be found at https://cert.pl/en/cvd/.