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CVE-2026-97370

CVE-2026-97370

validatedZero produced an exploit or a check.

GHSA-h9h9-2rmf-rvhp ↗EUVD-2026-102251 ↗

check availableZero validated a working check for it.not proven exploitableZero has a detection check, but hasn't produced a full working exploit yet.
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).kevAttacks confirmed in the real world.
junrar <=7.6.0
fixed in >=7.6.1
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')
ETK-2026-1889Zero's internal tracking ID, independent of the CVE number., permanent identifier
pkg:maven/com.github.junrar/junrar
cvss7.5cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
+1.9dTTV
26mAI analysisAnalysis: how long the AI spent reversing this signal.
Check if you are vulnerable
timeline
0 = trigger signal
trigger signal (cve.org) +0dcheck available+1.9dagent stopped
0
+1d
+2d

description

Versions of com.github.junrar:junrar before 7.6.1 can indefinitely consume an extraction thread when handling a malicious RAR4 archive. An attacker able to provide an archive for extraction can exhaust processing workers and disrupt archive-handling services.

mitigation

Upgrade com.github.junrar:junrar to >=7.6.1 or later.

fixed in >=7.6.1

check
available
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.
deterministic
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.
0.40%33rd percentile
agent run time
26m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-15 18:17Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
–
Δ to kevAttacks confirmed in the real world.
–

outcome

Contextual check: a technique exists and was validated, but no deterministic check could cover this one.

source signals

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

  1. 2026-10-15 18:17Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-97370

this entry in the feed

GET /api/v1/feed/CVE-2026-97370

{
  "etk_id": "ETK-2026-1889",
  "cve_id": "CVE-2026-97370",
  "display_id": "CVE-2026-97370",
  "ghsa_id": "GHSA-h9h9-2rmf-rvhp",
  "euvd_id": "EUVD-2026-102251",
  "status": "published",
  "anchor_state": "anchored",
  "title": "CPU denial of service in Junrar RAR extraction",
  "summary": "Versions of com.github.junrar:junrar before 7.6.1 can indefinitely consume an extraction thread when handling a malicious RAR4 archive. An attacker able to provide an archive for extraction can exhaust processing workers and disrupt archive-handling services.",
  "mitigation": "Upgrade com.github.junrar:junrar to >=7.6.1 or later.",
  "vendor": "junrar",
  "product": "junrar",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<=7.6.0"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        ">=7.6.1"
      ],
      "package_name": "com.github.junrar:junrar",
      "purl": "pkg:maven/com.github.junrar/junrar"
    }
  ],
  "cwes": [
    835
  ],
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss_score": 0.004,
  "epss_percentile": 0.3308,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 26.356819966666666,
  "t0_at": "2026-10-15T18:17:26.167000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-17T15:07:25.065921+00:00",
      "days": 1.868042811585648,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T18:17:26.167000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-15T18:17:26.167000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-15T18:17:26.167000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-97370"
    }
  }
}

published 2026-10-17 14:57Z
last change 2026-10-21 11:38Z

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