CVE-2026-21783 | HCL Traveler 3.0.11/3.0.12/3.0.14 information exposure (KB0129139)

VDB-352871 · CVE-2026-21783 · KB0129139 HCL TRAVELER 3.0.11/3.0.12/3.0.14 INFORMATION EXPOSURE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.2 $0-$5k 3.57+ Summaryinfo A vulnerability, which was classified as problematic, has been found in HCL Traveler. This affects an unknown part. The manipulation leads to information exposure. This vulnerability is documented as CVE-2026-21783. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component. Detailsinfo A vulnerability was found in HCL Traveler. It has been rated as problematic. This issue affects an unknown functionality. The manipulation with an unknown input leads to a information exposure vulnerability. Using CWE to declare the problem leads to CWE-209. The product generates an error message that includes sensitive information about its environment, users, or associated data. Impacted is confidentiality. The summary by CVE is: HCL Traveler is affected by sensitive information disclosure.  The application generates some error messages that provide detailed information about errors and failures, such as internal paths, file names, sensitive tokens, credentials, error codes, or stack traces.  Attackers could exploit this information to gain insights into the system's architecture and potentially launch targeted attacks. It is possible to read the advisory at support.hcl-software.com. The identification of this vulnerability is CVE-2026-21783 since 01/05/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK. Upgrading to version 14.5.1.0 eliminates this vulnerability. Productinfo Vendor HCL Name Traveler Version 3.0.11 3.0.12 3.0.14 License commercial CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.3 VulDB Meta Temp Score: 4.2 VulDB Base Score: 4.3 VulDB Temp Score: 4.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 4.3 CNA Vector (HCL): 🔒 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: Information exposure CWE: CWE-209 / CWE-200 / CWE-284 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: 🔒 Upgrade: Traveler 14.5.1.0 Timelineinfo 01/05/2026 CVE reserved 03/24/2026 +78 days Advisory disclosed 03/24/2026 +0 days VulDB entry created 03/24/2026 +0 days VulDB entry last update Sourcesinfo Advisory: KB0129139 Status: Confirmed CVE: CVE-2026-21783 (🔒) GCVE (CVE): GCVE-0-2026-21783 GCVE (VulDB): GCVE-100-352871 Entryinfo Created: 03/24/2026 21:34 Changes: 03/24/2026 21:34 (63) Complete: 🔍 Cache ID: 99:28F:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸