Description

HCL AION is affected by a vulnerability where certain input fields do not enforce sufficient server-side input validation. Unexpected or crafted input may be accepted by the application, potentially resulting in unintended behavior or security impact under certain conditions.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "3.4",
  "pubDate": "2026-08-13T14:16:48.170Z",
  "pubdate": "2026-08-13T14:16:48.170Z",
  "executiveSummary": "HCL AION contains an insufficient server-side input validation vulnerability affecting specific input fields within the application architecture. This security flaw allows the ingestion of unexpected, malformed, or maliciously crafted payloads that bypass preliminary boundary checks. The primary vulnerability type is improper input handling at the server layer, which creates a risk of processing anomalous data.\nThe potential impact of this security issue includes anomalous application processing, unexpected system state modifications, and potential security degradation under specific operational conditions. The affected product is HCL AION, specifically components that accept unvalidated parameters.\nRisk implications center around the potential for state corruption, unintended logic execution, or secondary security impacts depending on how the downstream application components process the unvalidated data. Threat actor capabilities required for exploitation involve the ability to interact with the application endpoints and supply customized input to the vulnerable input fields.\nExploitation requirements include network access to the target application and the ability to submit crafted parameters designed to exploit the absence of rigorous server-side validation checks. Remediation necessitates the implementation of strict validation routines on all server-side input channels to ensure strict adherence to expected data types, lengths, and formats.",
  "technicalDetails": "The root cause of this vulnerability stems from a lack of comprehensive server-side input validation within HCL AION. While client-side controls or basic checks may exist, the absence of robust server-side enforcement allows untrusted data to bypass boundary validation mechanisms and propagate deeper into the application logic.\nThe vulnerable components are specific input fields and associated processing handlers within HCL AION that fail to sanitize, canonicalize, or validate incoming parameters against a strict whitelist of expected values and data structures. This architectural oversight permits raw, unexpected, or crafted input to be accepted and processed by backend functions.\nThe attack flow proceeds as follows: First, an authenticated or unauthenticated adversary (depending on the exposure of the specific endpoint) crafts an anomalous payload designed to violate the implicit assumptions of the server-side logic. Second, the adversary transmits this payload via HTTP requests or other supported protocols to the vulnerable input fields within HCL AION. Third, the application receives the input and, due to insufficient server-side validation controls, fails to reject or sanitize the data. Fourth, the backend components process the malformed data, leading to unintended behavior, execution anomalies, or state corruption depending on the context in which the input is utilized.\nThe payload behavior involves the transmission of data structures, boundary-violating strings, or unexpected types that disrupt normal control flow or data processing pipelines. Because the application accepts this input without validation, downstream functions operate on tainted data.\nPost-exploitation impact, under certain operational conditions, can manifest as application instability, logic bypass, or secondary vulnerabilities if the unvalidated input interacts with sensitive backend sinks such as databases, system commands, or evaluation engines.\nAuthentication and privilege requirements vary based on the specific input field exposed, but exploitation generally requires network exposure to the HCL AION instance and the ability to interact with the application interfaces responsible for parsing the input."
}