Oracle Hyperion CVE-2026-62477

Exploitation requires a valid low-privilege Oracle Hyperion user account with network access to the Hyperion Infrastructure Technology HTTP interface - the CVSS vector (AV:N/AC:L/PR:L/UI:N) confirms this baseline requirement. No special non-default configuration is documented as a prerequisite; the flaw appears to affect standard deployments of version 11.2.25.0.000 reachable over HTTP. Limiting factors include: the mandatory possession of at least a low-privilege valid account (PR:L - not unauthenticated), network reachability of the Hyperion HTTP endpoint (many enterprise deployments are internal-only behind VPN or firewalls), and the scope being confined to version 11.2.25.0.000 only. The 'Authentication Bypass' tag may indicate that authentication itself is bypassed despite PR:L - this ambiguity should be verified with Oracle, as it would change the exploitation baseline from 'must have an account' to 'no account required.'

The CVSS 3.1 Base Score of 8.1 (High) reflects network accessibility (AV:N), low attack complexity (AC:L), minimal privilege requirements (PR:L), no required user interaction (UI:N), and high confidentiality and integrity impact with no availability impact (C:H/I:H/A:N). The real-world risk is meaningfully reduced compared to a PR:N flaw because exploitation requires a valid account - even a low-privilege one - which limits the threat primarily to malicious insiders or scenarios involving compromised credentials. No EPSS score was provided in the available data, making probabilistic exploitation likelihood unavailable; this gap should be noted. The absence of a CISA KEV listing and any identified POC code suggests opportunistic mass exploitation is not currently occurring. For organizations running Oracle Hyperion internally for financial operations, the primary risk is a rogue internal user or a phished/stolen low-privilege service account being used to exfiltrate or manipulate critical financial and planning data. The lack of availability impact (A:N) limits business disruption risk but the C:H/I:H combination poses significant data integrity and confidentiality concerns in a financial context.

An attacker in possession of a low-privilege Oracle Hyperion user account - such as a read-only analyst or compromised service account - sends a crafted HTTP request to the Hyperion Infrastructure Technology endpoint targeting the Common Security component. The authorization bypass allows the attacker to read or modify all data accessible to the platform, including sensitive financial consolidation records and planning data, well beyond the account's intended scope. No public exploit code has been identified at time of analysis, so exploitation currently requires independent discovery or reproduction of the bypass mechanism.