SUSE · Security update for kubevirt1.9
Affects SUSESource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 8.8 High.
Data as of 31 Oct 2026, 20:20 UTC
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 12 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| Red HatRed Hat Container Native Virtualization 4.12 | Affected– | Fixed in– |
| Red HatRed Hat Container Native Virtualization 4.13 | Affected– | Fixed in– |
| Red HatRed Hat Container Native Virtualization 4.14 | Affected– | Fixed in– |
| Red HatRed Hat Container Native Virtualization 4.15 | Affected– | Fixed in– |
| Red HatRed Hat Container Native Virtualization 4.16 | Affected– | Fixed in– |
| Red HatRed Hat Container Native Virtualization 4.17 | Affected– | 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
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_22180-1.json (opens in a new tab)
- bugzilla.suse.com/1272840 (opens in a new tab)
- bugzilla.suse.com/1285255 (opens in a new tab)
- bugzilla.suse.com/1286984 (opens in a new tab)
- bugzilla.suse.com/1287039 (opens in a new tab)
- bugzilla.suse.com/1287143 (opens in a new tab)
- bugzilla.suse.com/1287446 (opens in a new tab)
- suse.com/security/cve/CVE-2026-13622/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-78659/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-78660/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-78663/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-78669/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-97032/ (opens in a new tab)