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CVE-2026-13622VulnerabilityPublished Updated

SUSE · Security update for kubevirt1.9

Affects SUSESource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-13622· High 8.8

Not known to be exploited · CVSS 8.8 High.

Data as of 31 Oct 2026, 20:20 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red HatRed Hat Container Native Virtualization 4.12Affected–Fixed in–
Red HatRed Hat Container Native Virtualization 4.13Affected–Fixed in–
Red HatRed Hat Container Native Virtualization 4.14Affected–Fixed in–
Red HatRed Hat Container Native Virtualization 4.15Affected–Fixed in–
Red HatRed Hat Container Native Virtualization 4.16Affected–Fixed in–
Red HatRed Hat Container Native Virtualization 4.17Affected–Fixed in–

AI-suggested

Upgrade kubevirt to version 1.9.1, which contains fixes for all listed vulnerabilities. The update also pins virt-template to version v0.2.3. No additional mitigation steps are indicated in the provided information.

Description

This security update for kubevirt1.9 addresses multiple vulnerabilities including a container escape issue via virt-handler migration proxy symlink following and several HTTP/2 protocol-related flaws in the golang.org/x/net/http2 package. The update advances kubevirt to version 1.9.1, which includes these fixes and pins virt-template to v0.2.3. The vulnerabilities involve memory exhaustion, malformed header acceptance, double flow control refunds, excessive CPU consumption, and server crashes due to race conditions in HTTP/2 handling.

References

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