SUSE · Security update for mcphost
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 10 Nov 2026, 20:06 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 10 Nov 2026.
What to do
Upgrade grpc-go to 1.83.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| grpcgrpc-go | Affected
| Fixed in
|
Description
This update for mcphost fixes the following issues: - CVE-2026-84303: google.golang.org/grpc: xDS RBAC HTTP filter implementation issue allows for bypass of authorization policies via mixed-case or canonical-case header matches (bsc#1279274). - CVE-2026-84304: google.golang.org/grpc: heap memory exhaustion via HTTP/2 DATA frame fragmentation (bsc#1279396). - CVE-2026-84445: google.golang.org/grpc: DoS via crash due to missing ':authority' and 'Host' headers in gRPC-Go xDS servers (bsc#1278853).
References
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/2026/opensuse-su-2026_21886-1.json (opens in a new tab)
- bugzilla.suse.com/1278853 (opens in a new tab)
- bugzilla.suse.com/1279274 (opens in a new tab)
- bugzilla.suse.com/1279396 (opens in a new tab)
- suse.com/security/cve/CVE-2026-84303/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-84304/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-84445/ (opens in a new tab)