CVE-2026-20148 | Cisco Identity Services Engine Software HTTP path traversal (cisco-sa-ise-rce-traversal-8bYndVrZ)

VDB-357744 · CVE-2026-20148 · GCVE-0-2026-20148 CISCO IDENTITY SERVICES ENGINE SOFTWARE HTTP PATH TRAVERSAL HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.7 $0-$5k 2.79+ Summaryinfo A vulnerability, which was classified as critical, was found in Cisco Identity Services Engine Software and ISE Passive Identity Connector. This affects an unknown part of the component HTTP Handler. The manipulation results in path traversal. This vulnerability is cataloged as CVE-2026-20148. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component. Detailsinfo A vulnerability, which was classified as problematic, was found in Cisco Identity Services Engine Software and ISE Passive Identity Connector (affected version not known). Affected is some unknown functionality of the component HTTP Handler. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. CVE summarizes: A vulnerability in Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to perform path traversal attacks on the underlying operating system and read arbitrary files. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to access sensitive files on the affected system. The advisory is shared for download at sec.cloudapps.cisco.com. This vulnerability is traded as CVE-2026-20148 since 10/08/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are needed for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/15/2026). The MITRE ATT&CK project declares the attack technique as T1006. Upgrading eliminates this vulnerability. Productinfo Type Policy Management Software Vendor Cisco Name Identity Services Engine Software ISE Passive Identity Connector License commercial Website Vendor: https://www.cisco.com/ CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.8 VulDB Meta Temp Score: 3.7 VulDB Base Score: 2.7 VulDB Temp Score: 2.6 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 4.9 CNA Vector (cisco): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Path traversal CWE: CWE-22 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Timelineinfo 10/08/2025 CVE reserved 04/15/2026 +189 days Advisory disclosed 04/15/2026 +0 days VulDB entry created 04/15/2026 +0 days VulDB entry last update Sourcesinfo Vendor: cisco.com Advisory: cisco-sa-ise-rce-traversal-8bYndVrZ Status: Confirmed CVE: CVE-2026-20148 (🔒) GCVE (CVE): GCVE-0-2026-20148 GCVE (VulDB): GCVE-100-357744 Entryinfo Created: 04/15/2026 18:27 Changes: 04/15/2026 18:27 (64) Complete: 🔍 Cache ID: 99:99F:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸