Hardcoded credentials and other issues in Tata Motors App

The reported vulnerabilities affect Tata Motors iRA 2.0 and iRA.ev mobile applications. These are the application versions named in the advisory, and users of both are identified as the target audience. The issue matters because these apps connect users with vehicle-related information and services.

For example, a person using either named app could face risk if weaknesses allow an attacker to obtain sensitive credentials. The advisory also warns of possible access to vehicle-related information and services, plus modification of application data. It does not identify a specific phone operating system or list individual vehicle models.

The stated solution is to upgrade to the latest versions of the affected applications. Tata Motors provides iRA 2.0 and iRA.ev through its listed mobile app distribution links. The advisory does not state the exact fixed version numbers, so users should check the latest available release before continuing to use the affected apps.

The advisory lists four vulnerability identifiers: CVE-2026-121144, CVE-2026-121145, CVE-2026-121146, and CVE-2026-121147. CVE identifiers provide distinct references for reported security weaknesses. Together, they show that the issue is a group of vulnerabilities rather than one isolated defect.

The overall severity rating is HIGH. That rating matters because the stated risks include unauthorized access to sensitive information, user impersonation, and unauthorized modification of application data. The impact could occur with the privileges of the user being impersonated, according to the advisory.

The notice is dated November 04, 2026. It does not provide separate severity ratings for each CVE or explain the technical details of every weakness. Its practical direction is clear: users of the affected applications should upgrade to the latest versions provided by Tata Motors.

The reported weaknesses could let an attacker obtain sensitive credentials or access vehicle-related information and services. The advisory also identifies unauthorized access and modification of data as possible impacts. This makes the issue more serious than a simple display or performance problem.

A concrete example would be an attacker using stolen credentials or another application weakness to act as a legitimate user. The advisory says this could enable user impersonation and unauthorized modification of application data. Any resulting access or change could occur with the privileges assigned to the impersonated user.

The notice does not specify exactly which vehicle details or services could be reached, nor does it describe particular changes an attacker could make. It recommends upgrading to the latest application versions. Users should treat the warning seriously because the stated impact includes both information exposure and data modification.

The advisory identifies user impersonation as a risk. In practical terms, an attacker could pretend to be a legitimate user of an affected Tata Motors application. The impact could then occur with that user’s privileges, meaning access would depend on what the impersonated account is allowed to do.

For example, if a weakness exposed credentials or enabled unauthorized access, the attacker might enter the application as the user. The notice says this could expose vehicle-related information or services and allow unauthorized modification of application data. It does not name a particular user category or vehicle function.

The exact information and services at risk are not listed in the advisory. Therefore, it is safest to describe them only as vehicle-related information and services. Upgrading the iRA 2.0 or iRA.ev application to its latest version is the stated remedy for affected users.

Hardcoded credentials are authentication details placed directly inside an application’s code or files. They might include a username, password, access token, or encryption key. Unlike a credential entered by each user, a hardcoded value is supplied by the developer and travels with the application.

If attackers inspect or reverse-engineer the application, they may be able to discover that value. If it is shared across installations, one exposed credential could potentially work against many users or systems. Reused credentials can therefore turn a single application weakness into broader unauthorized access. This explanation uses established security knowledge; the supplied advisory does not specifically state that hardcoded credentials are involved.

The advisory does state that attackers could obtain sensitive credentials and impersonate users. It recommends upgrading to the latest application versions, which may contain security fixes. Users should also avoid sharing credentials and report suspicious activity, although those additional precautions are general guidance rather than details stated in the notice.

A shared application weakness can affect many users because the same software may be installed across numerous devices and accounts. If the vulnerable code handles authentication, data access, or service requests for everyone, attackers can target that common point instead of attacking each user separately.

For example, a credential embedded in an application could be copied from one app package and tested against many installations, especially if the credential is reused. Similarly, a flaw in a shared backend request could expose data or permit actions across multiple accounts. These examples use established security principles; the advisory does not describe a shared credential or specific backend design.

The notice reports possible unauthorized access, user impersonation, and data modification, with the privileges of the impersonated user. That makes broad impact possible, but the article does not quantify how many users or vehicles are affected. Upgrading remains the stated corrective action.

Upgrading reduces risk by moving users from the affected application version to the latest version supplied by Tata Motors. Vendors commonly use updated releases to correct vulnerabilities, strengthen protections, or remove exposed components. The advisory specifically says to upgrade to the latest versions, but it does not identify the exact fixes or version numbers.

Affected users should update both iRA 2.0 and iRA.ev through the official Tata Motors app listings. They should also use unique credentials, avoid sharing login details, review account activity, and contact Tata Motors if suspicious behavior appears. These additional precautions are established security guidance, not measures explicitly listed in the advisory.

Users should prioritize the update because the reported impact includes credential exposure, user impersonation, and unauthorized data access or modification. Until updated, they should limit unnecessary use of affected applications where practical. The notice does not provide a separate incident-response process or confirm that exploitation has occurred.