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Security update for google-guest-agent

Type: advisorySource: OSV1 source record

This update for google-guest-agent fixes the following issues: - CVE-2026-56852: golang.org/x/text/unicode/norm: infinite loop on truncated/invalid UTF-8 input (bsc#1272118). - CVE-2026-56854,CVE-2026-56855,CVE-2026-78662: golang.org/x/crypto/ssh: authentication bypass and deadlocks in the crypto/ssh library (bsc#1278597). - 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#1279297). - CVE-2026-84304: google.golang.org/grpc: heap memory exhaustion via HTTP/2 DATA frame fragmentation (bsc#1279414). - CVE-2026-84445: google.golang.org/grpc: DoS via crash due to missing ':authority' and 'Host' headers in gRPC-Go xDS servers (bsc#1278967). Changes for google-guest-agent: - Update to version 20260903.01 * Update dependencies to latest (#636) * fix octal digit comparison in morePermissive (#631) * Remove KillMode from google-guest-agent-manager (#629) * Fix SUSE Linux Micro 6+ (#628) + Fix oslogin for Micro 6+ * Exclude irrelevant tests on FreeBSD (#625) * Replace abandoned serial dependency (#624) * Add build rules for MWLID extension * Support basic account management on FreeBSD (#619) * fix dependency between sshd and google-guest-agent-manager.service (#621) * Update go.mod dependencies (#622) * Fallback to shebang execution when running scripts (#618) * Update go dependencies (#620) * Make guest-agent buildable on FreeBSD (#617)

Announced Source revision 1
Original source ↗

SUSE-SU-2026:23736-1

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:SUSE-SU-2026:23736-1

google-guest-agent

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
20260903.01-slfo.1.1_1.1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "20260903.01-slfo.1.1_1.1"
          }
        ]
      }
    ],
    "package": {
      "name": "google-guest-agent",
      "purl": "pkg:rpm/suse/google-guest-agent&distro=SUSE%20Linux%20Micro%206.1",
      "ecosystem": "SUSE:Linux Micro 6.1"
    },
    "database_specific": {
      "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:23736-1.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "google-guest-agent": "20260903.01-slfo.1.1_1.1"
        }
      ]
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#19929 · Revision 1
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Publisher date
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