SUSE · Security update for warewulf4
Affects SUSESource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 6.3 Medium : upgrade SUSE to 1.83.1 when convenient.
Data as of 5 Nov 2026, 00:44 UTC
- Patch
- Available – fixed in 1.83.1
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 1 Sep 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 5 Nov 2026.
What to do
Upgrade grpc-go to 1.83.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| grpcgrpc-go | Affected
| Fixed in
|
AI-suggested
A security update for warewulf4 that updates the google.golang.org/grpc library is available and should be applied to remediate these vulnerabilities. No additional mitigation steps are indicated in the provided information.
Description
This security update for warewulf4 addresses two critical vulnerabilities in the google.golang.org/grpc library. The first vulnerability (CVE-2026-84445) involves a denial-of-service (DoS) condition caused by a crash when ':authority' and 'Host' headers are missing in gRPC-Go xDS servers. The second vulnerability (CVE-2026-84303) is an authorization bypass in the xDS RBAC HTTP filter due to case-insensitive header matching issues.
References
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_22221-1.json (opens in a new tab)
- bugzilla.suse.com/1278760 (opens in a new tab)
- bugzilla.suse.com/1279257 (opens in a new tab)
- suse.com/security/cve/CVE-2026-84303/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-84445/ (opens in a new tab)