CVE-2026-5166
Published: 29 April 2026
Summary
CVE-2026-5166 is a critical-severity Path Traversal (CWE-22) vulnerability in Gov (inferred from references). Its CVSS base score is 9.6 (Critical).
Operationally, ranked at the 24.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2026-5166 is an Improper Limitation of a Pathname to a Restricted Directory vulnerability, classified under CWE-22 as a Path Traversal issue, affecting the Pardus Software Center developed by TUBITAK BILGEM Software Technologies Research Institute. This flaw impacts versions of Pardus Software Center prior to 1.0.3. The vulnerability has a CVSS v3.1 base score of 9.6, reflecting its critical severity due to network accessibility, low attack complexity, no required privileges, user interaction dependency, high scope change, and high impacts on confidentiality, integrity, and availability.
A remote attacker with no privileges can exploit this vulnerability by tricking a user into performing an action, such as interacting with a maliciously crafted input or file, leading to path traversal. Successful exploitation allows the attacker to access restricted directories, potentially resulting in high-impact data exposure, modification, or disruption across the affected scope.
The Turkish National Cyber Incident Response Center (USOM) has issued an advisory on this vulnerability, available at https://www.usom.gov.tr/bildirim/tr-26-0131, which security practitioners should consult for detailed mitigation guidance. Updating to Pardus Software Center version 1.0.3 or later addresses the issue in affected systems.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-26248
Vulnerability details
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in TUBITAK BILGEM Software Technologies Research Institute Pardus Software Center allows Path Traversal. This issue affects Pardus Software Center: before 0.6.4.
- CWE(s)
Related Threats
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Insufficient information to map techniques.CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly addresses path traversal by requiring validation of pathname inputs to ensure they remain within restricted directories.
Mandates timely remediation of the specific flaw in Pardus Software Center prior to version 1.0.3 via patching to eliminate the vulnerability.
Enforces access control policies to limit unauthorized access to restricted directories targeted by path traversal exploits.