CVE-2026-85498

A flaw was found in polkit. When processing input that begins with a null byte, an arithmetic error in the authentication agent helper causes an integer underflow during buffer length calculation, resulting in an out-of-bounds memory read. An attacker capable of supplying crafted input can trigger this flaw, potentially causing an application crash and resulting in a Denial of Service (DoS).

CVSS v3 3.5 LOW

3.5^/10

CVSS v3 : LOW

Vector :

Exploitability : 2.1 / Impact : 1.4

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:66287
https://access.redhat.com/security/cve/CVE-2026-85498
https://bugzilla.redhat.com/show_bug.cgi?id=2528347

Configurations

No configuration.

History

29 Oct 2026, 09:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-29 09:17

Updated : 2026-10-30 02:17

NVD link : CVE-2026-85498

Mitre link : CVE-2026-85498

CVE.ORG link : CVE-2026-85498

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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