Authenticated information disclosure via verbose error responses
Published Mar 24, 2026 · Updated Mar 24, 2026
Sensitive information disclosure in HCL Traveler before 14.5.1.0 allows remote authenticated users to read internal details via error responses. The error-response path returns internal paths, file names, tokens, credentials, error codes, or stack traces instead of suppressing sensitive details. A valid low-privilege account and network access are required; exposure is limited to confidentiality and can reveal system architecture or secrets.
Summary
What happened
Sensitive information disclosure in HCL Traveler before 14.5.1.0 allows remote authenticated users to read internal details via error responses. The error-response path returns internal paths, file names, tokens, credentials, error codes, or stack traces instead of suppressing sensitive details. A valid low-privilege account and network access are required; exposure is limited to confidentiality and can reveal system architecture or secrets.
The record
- CVE
- CVE-2026-21783
- Published
- Mar 24, 2026
- Updated
- Mar 24, 2026
- Vendor
- HCLSoftware
- Product
- HCL Traveler
- Classifications
- CWE-209, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 24, 2026CVE publishedPublication date reported by the CVE source.
- Mar 24, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 14.5.1.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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