IBM Bob 2.0.3 Authentication Provider API improper authorization

Summaryinfo

A vulnerability marked as problematic has been reported in IBM Bob 2.0.3. This affects an unknown function of the component Authentication Provider API. The manipulation leads to improper authorization. This vulnerability is uniquely identified as CVE-2026-5514. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in IBM Bob 2.0.3. This issue affects an unknown code of the component Authentication Provider API. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality. The summary by CVE is:

IBM Bob 2.0.3 allows unauthorized extensions to retrieve session tokens via the authentication provider API. The token is exposed in the account identifier field during account enumeration, without requiring explicit user consent. This may allow malicious extensions to access sensitive session information and potentially perform unauthorized actions on behalf of the user.

The advisory is shared at ibm.com. The identification of this vulnerability is CVE-2026-5514 since 04/03/2026. The exploitation is known to be easy. An attack has to be approached locally. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/13/2026). MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• IBM

Name

• Bob

Version

• 2.0.3

License

• commercial

Website

• Vendor: https://www.ibm.com/

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