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CVE-2026-93879

CVE-2026-93879

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

EUVD-2026-119739 ↗

no check availablenot proven exploitable
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.
IBM Hibernate Validator >= 5.4.1.Final, <= 6.2.5.Final; >= 7.0.0.Alpha1, <= 7.0.5.Final; >= 8.0.0.Alpha1, <= 8.0.5.Final; >= 9.0.0.Beta2, <= 9.0.1.Final; >= 9.1.0.Alpha1, <= 9.1.4.Final
CWE-400 Uncontrolled Resource Consumption
ETK-2026-3909Zero's internal tracking ID, independent of the CVE number., permanent identifier
cvss7.5cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2d 11h 53msince last run
11mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org publication
trigger signal (cve.org) +0hwaiting for further signals+0h19m
+2h
+4h
+6h
+8h
+10h
+12h

description

Hibernate Validator can consume excessive resources when it processes attacker-controlled data in Expression Language expressions. A remote attacker may cause a denial of service if they can cause such data to reach the affected validation path.

mitigation

For affected WebSphere Liberty installations, apply IBM APAR DT505010. Until an applicable vendor update is deployed, limit untrusted input reaching Expression Language-backed validation paths and apply resource limits where practical.

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.
contextual
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.
0.33%26th percentile
agent run time
11m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-11-08 18:47Z
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, not validated: no deterministic check could cover this one, and no technique passed our review.

source signals

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

  1. 2026-11-08 18:47Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-93879

this entry in the feed

GET /api/v1/feed/CVE-2026-93879

{
  "etk_id": "ETK-2026-3909",
  "cve_id": "CVE-2026-93879",
  "display_id": "CVE-2026-93879",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-119739",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Expression Language resource exhaustion in Hibernate Validator",
  "summary": "Hibernate Validator can consume excessive resources when it processes attacker-controlled data in Expression Language expressions. A remote attacker may cause a denial of service if they can cause such data to reach the affected validation path.",
  "mitigation": "For affected WebSphere Liberty installations, apply IBM APAR DT505010. Until an applicable vendor update is deployed, limit untrusted input reaching Expression Language-backed validation paths and apply resource limits where practical.",
  "vendor": "IBM",
  "product": "Hibernate Validator",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 5.4.1.Final, <= 6.2.5.Final",
        ">= 7.0.0.Alpha1, <= 7.0.5.Final",
        ">= 8.0.0.Alpha1, <= 8.0.5.Final",
        ">= 9.0.0.Beta2, <= 9.0.1.Final",
        ">= 9.1.0.Alpha1, <= 9.1.4.Final"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Hibernate Validator",
      "purl": null
    }
  ],
  "cwes": [
    400
  ],
  "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": 0.0033,
  "epss_percentile": 0.2605,
  "epss_asof": "2026-11-09",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 11.3079155,
  "t0_at": "2026-11-08T18:47:46.353000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-08T18:47:46.353000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-08T18:47:46.353000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-93879"
    }
  }
}

published 2026-11-08 18:55Z
last change 2026-11-11 05:47Z

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