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HFS2 2.4.0 Unauthenticated Denial of Service via Hung Serving Thread

Type: advisorySource: Official CVE List1 source record

HFS2 version 2.4.0 and earlier contains a denial of service vulnerability that allows unauthenticated attackers to cause a complete and persistent loss of availability by sending a single crafted request. Attackers can trigger a hung serving thread that enters a busy loop, rendering the entire file server unresponsive to all clients without self-recovery until an operator manually restarts the service.

Announced Source revision 1
Original source ↗

CVE-2026-97362

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: cve:CVE-2026-97362

hfs2

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/rejetto/hfs2",
    "vendor": "rejetto",
    "product": "hfs2",
    "versions": [
      {
        "status": "affected",
        "version": "2.0.0",
        "versionType": "semver",
        "lessThanOrEqual": "2.4.0"
      }
    ],
    "packageURL": "pkg:github/rejetto/hfs2",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-97362

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#1797 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement