4.4Medium
Redhat Openshift Container Platform
CVE-2026-13002
A flow has been identified into dnssec.c library, causing an infinite loop to dnsmasq service. An attacker who controls any DNSSEC-signed zone can hang the dnsmasq process with a single crafted response, killing all DNS resolution for its clients.
What this means for your business
- It affects Redhat Openshift Container Platform. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it only with access to the machine itself, with an administrator login, and without anyone at your company clicking anything.
What to do
- 1Check whether your company or your suppliers run Redhat Openshift Container Platform, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Not sure if your company is exposed?
Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.
Scoring
- CVSS
- 4.4 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H- Weakness
- CWE-835
- Assigned by
- secalert@redhat.com
Dates
- Published
- 2026-08-14
- Last modified
- 2026-08-31
- Sources
- NVD
Affected products
- Redhat Openshift Container Platform4.0
- Redhat Enterprise Linux6.0, 7.0, 8.0, 9.0, 10.0
As listed in the NVD configuration data. Not a statement about your estate.