CVE-2026-97359

waiting for further signalsZero needs more public information before it can validate it.

GHSA-2w8r-rhgc-4pch ↗EUVD-2026-85879 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).+0mkevAttacks confirmed in the real world.+9d
rejetto hfs2 >= 2.0.0, <= 2.4.0
CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine
ETK-2026-601, permanent identifier
16d 02h 10msince last run
1h 53mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
cve.org publication−8.4dpublic poctrigger signal +0dkev+1.0dwaiting for further signals+2.2d
−6d
−4d
−2d
0

description

Rejetto hfs2 versions 2.4.0 and earlier are affected by template injection during multipart file uploads. An unauthenticated remote attacker who can submit an upload may execute commands on the host.

mitigation

Disable unauthenticated uploads or restrict upload access to trusted users and networks. Limit public exposure of affected hfs2 instances; no fixed release is recorded.

check
no
exploit
no
automationDeterministic: a check that runs on its own, the same request on every target. Contextual: an agentic technique that needs to be applied per target, for bugs that depend on contextual flows.
–
auth requiredWhether an attacker needs an account first, based on the CVSS vector's Privileges Required.
no
EPSSEstimate of the chance this CVE is exploited in the next 30 days. Refreshed daily.
0.78%55th percentile
agent run time
1h 53m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-09-24 13:28Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
+0m
Δ to kevAttacks confirmed in the real world.
+9d

outcome

No artifact: an exploit or check was attempted but could not be produced at this moment.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

  1. 2026-09-24 13:28Z
  2. 2026-10-03
    vulncheck_kev: trigger signal, started the run
  3. 2026-10-03 00:00Z
  4. 2026-10-11 23:35Z

this entry in the feed

GET /api/v1/feed/CVE-2026-97359

{
  "etk_id": "ETK-2026-601",
  "cve_id": "CVE-2026-97359",
  "display_id": "CVE-2026-97359",
  "ghsa_id": "GHSA-2w8r-rhgc-4pch",
  "euvd_id": "EUVD-2026-85879",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Template injection in rejetto hfs2 upload handling",
  "summary": "Rejetto hfs2 versions 2.4.0 and earlier are affected by template injection during multipart file uploads. An unauthenticated remote attacker who can submit an upload may execute commands on the host.",
  "mitigation": "Disable unauthenticated uploads or restrict upload access to trusted users and networks. Limit public exposure of affected hfs2 instances; no fixed release is recorded.",
  "vendor": "rejetto",
  "product": "hfs2",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.0.0, <= 2.4.0"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "hfs2",
      "purl": null
    }
  ],
  "cwes": [
    1336
  ],
  "cvss_score": 10,
  "cvss_src": "nvd",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
  "epss_score": 0.0078,
  "epss_percentile": 0.5515,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 112.86964403333333,
  "t0_at": "2026-09-24T13:28:18.818000+00:00",
  "signals": {
    "kev": {
      "at": "2026-10-03T00:00:00+00:00",
      "days": 9,
      "is_lower_bound": false,
      "measured_at": "2026-09-24T13:28:18.818000+00:00",
      "precision": "day",
      "url": "https://vulncheck.com/cve/CVE-2026-97359"
    },
    "public_poc": {
      "at": "2026-09-24T13:28:18.818000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-24T13:28:18.818000+00:00",
      "url": "https://github.com/wgetnz/hfs2/blob/master/advisories/hfs2-upload-filename-template-injection/README.md"
    },
    "trigger_signal": {
      "at": "2026-10-03T00:00:00+00:00",
      "days": 8.438671087962963,
      "is_lower_bound": false,
      "measured_at": "2026-09-24T13:28:18.818000+00:00",
      "url": "https://vulncheck.com/cve/CVE-2026-97359"
    }
  }
}

published 2026-10-04 23:22Z
last change 2026-10-21 05:00Z

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