CVE-2026-85498
Low
Description
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).
SeverityLow
CVSS3.5
Exploit probability—
Product
Red Hat Hardened Images
PublishedOct 29, 2026
First seenNov 4, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Hardened Images | No range specified | — |
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 6 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 8 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 9 | No range specified | — |
| Red Hat Red Hat OpenShift Container Platform 4 | No range specified | — |
| Red Hat Red Hat OpenShift Container Platform 5 | No range specified | — |
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