IBM i 7.6/7.5/7.4/7.3: Priv Escalation via LANG Env Var
CVE-2026-16987 Published on August 13, 2026

IBM i is Affected By An Improper Validation Vulnerability in PASE []
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to gain elevated privileges due to improper validation of the LANG environment variable.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-16987 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

External Control of File Name or Path

The software allows user input to control or influence paths or file names that are used in filesystem operations.


Products Associated with CVE-2026-16987

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IBM I
 

Affected Versions

IBM i: