CVE-2026-95616

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

GHSA-9gjf-54jg-6353 ↗EUVD-2026-89801 ↗

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.
Apache Software Foundation Apache WSS4J >= 4.0.0, < 4.0.2; >= 3.0.0, < 3.0.6; < 2.4.4
fixed in 4.0.2, 3.0.6, 2.4.4
ETK-2026-190, permanent identifier
20d 08h 01msince last run
12mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org publication
trigger signal (cve.org) +0hwaiting for further signals+14h
0
+2h
+4h
+6h
+8h
+10h

description

Apache WSS4J versions before 4.0.2, 3.0.6, and 2.4.4 are affected by an integer overflow in DER bounds checking. An unauthenticated remote attacker can send a SOAP message with a crafted X.509 certificate extension to trigger excessive memory allocation and exhaust server memory. The vulnerable processing occurs before message authentication.

mitigation

Upgrade org.apache.wss4j:wss4j-ws-security-common to 4.0.2, 3.0.6, or 2.4.4, as appropriate for the deployed release line. Restrict untrusted SOAP traffic until the update is applied.

fixed in 4.0.2, 3.0.6, 2.4.4

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.
0.41%33rd percentile
agent run time
12m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-09-30 12:25Z
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: an exploit technique exists, 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. 2026-09-30 12:25Z
    cve_org: trigger signal, started the run

this entry in the feed

GET /api/v1/feed/CVE-2026-95616

{
  "etk_id": "ETK-2026-190",
  "cve_id": "CVE-2026-95616",
  "display_id": "CVE-2026-95616",
  "ghsa_id": "GHSA-9gjf-54jg-6353",
  "euvd_id": "EUVD-2026-89801",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Integer overflow in Apache WSS4J DER bounds checking",
  "summary": "Apache WSS4J versions before 4.0.2, 3.0.6, and 2.4.4 are affected by an integer overflow in DER bounds checking. An unauthenticated remote attacker can send a SOAP message with a crafted X.509 certificate extension to trigger excessive memory allocation and exhaust server memory. The vulnerable processing occurs before message authentication.",
  "mitigation": "Upgrade org.apache.wss4j:wss4j-ws-security-common to 4.0.2, 3.0.6, or 2.4.4, as appropriate for the deployed release line. Restrict untrusted SOAP traffic until the update is applied.",
  "vendor": "Apache Software Foundation",
  "product": "Apache WSS4J",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 4.0.0, < 4.0.2",
        ">= 3.0.0, < 3.0.6",
        ">= 0, < 2.4.4"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "4.0.2",
        "3.0.6",
        "2.4.4"
      ],
      "package_name": "org.apache.wss4j:wss4j-ws-security-common",
      "purl": null
    }
  ],
  "cwes": null,
  "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": 0.0041,
  "epss_percentile": 0.3374,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 11.591278316666667,
  "t0_at": "2026-09-30T12:25:28.399000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-09-30T12:25:28.399000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-30T12:25:28.399000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-95616"
    }
  }
}

published 2026-10-01 02:13Z
last change 2026-10-21 09:11Z

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