CVE-2025-58186 Affecting rbd-nbd package, versions *


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.03% (9th percentile)

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  • Snyk IDSNYK-RHEL9-RBDNBD-14459242
  • published17 Dec 2025
  • disclosed29 Oct 2025

Introduced: 29 Oct 2025

CVE-2025-58186  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 rbd-nbd.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rbd-nbd package and not the rbd-nbd package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

Despite HTTP headers having a default limit of 1MB, the number of cookies that can be parsed does not have a limit. By sending a lot of very small cookies such as "a=;", an attacker can make an HTTP server allocate a large amount of structs, causing large memory consumption.

CVSS Base Scores

version 3.1