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CVE-2026-68498

CVE-2026-68498

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

GHSA-649p-m576-vr99 ↗EUVD-2026-103177 ↗

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.
FasterXML jackson-core >= 2.16.0, <= 2.18.9; >= 2.19.0, <= 2.21.5; >= 2.22.0, <= 2.22.1; >= 3.0.0, <= 3.1.5; >= 3.2.0, <= 3.2.1
fixed in 2.18.10, 2.21.6, 2.22.2, 3.1.6, 3.2.2
CWE-400 Uncontrolled Resource Consumption
ETK-2026-1824Zero's internal tracking ID, independent of the CVE number., permanent identifier
pkg:maven/com.fasterxml.jackson.core/jackson-core
pkg:maven/tools.jackson.core/jackson-core
cvss7.5cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4d 05h 25msince last run
22mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = cve.org publication
trigger signal (cve.org) +0hwaiting for further signals+3h10m
0
+2h
+4h
+6h
+8h
+10h
+12h

description

Jackson-core versions starting at 2.16.0 in the com.fasterxml.jackson.core line and 3.0.0 in the tools.jackson.core line can consume excessive memory when parsing an untrusted JSON object with an oversized property name from character-based input. An unauthenticated attacker may exhaust heap memory and disrupt the application when it accepts JSON through a String, Reader, or char[] source.

mitigation

Upgrade com.fasterxml.jackson.core:jackson-core to 2.18.10, 2.21.6, or 2.22.2, or upgrade tools.jackson.core:jackson-core to 3.1.6 or 3.2.2. Until upgraded, avoid parsing untrusted JSON from character-based sources and use raw UTF-8 byte input where practical.

fixed in 2.18.10, 2.21.6, 2.22.2, 3.1.6, 3.2.2

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.
0.91%59th percentile
agent run time
22m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-16 21:11Z
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. 2026-10-16 21:11Z
    cve_org: trigger signal, started the run
    https://www.cve.org/CVERecord?id=CVE-2026-68498

this entry in the feed

GET /api/v1/feed/CVE-2026-68498

{
  "etk_id": "ETK-2026-1824",
  "cve_id": "CVE-2026-68498",
  "display_id": "CVE-2026-68498",
  "ghsa_id": "GHSA-649p-m576-vr99",
  "euvd_id": "EUVD-2026-103177",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Jackson-core resource exhaustion through oversized JSON field names",
  "summary": "Jackson-core versions starting at 2.16.0 in the com.fasterxml.jackson.core line and 3.0.0 in the tools.jackson.core line can consume excessive memory when parsing an untrusted JSON object with an oversized property name from character-based input. An unauthenticated attacker may exhaust heap memory and disrupt the application when it accepts JSON through a String, Reader, or char[] source.",
  "mitigation": "Upgrade com.fasterxml.jackson.core:jackson-core to 2.18.10, 2.21.6, or 2.22.2, or upgrade tools.jackson.core:jackson-core to 3.1.6 or 3.2.2. Until upgraded, avoid parsing untrusted JSON from character-based sources and use raw UTF-8 byte input where practical.",
  "vendor": "FasterXML",
  "product": "jackson-core",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.16.0, <= 2.18.9"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "2.18.10"
      ],
      "package_name": "com.fasterxml.jackson.core:jackson-core",
      "purl": "pkg:maven/com.fasterxml.jackson.core/jackson-core"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.19.0, <= 2.21.5"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "2.21.6"
      ],
      "package_name": "com.fasterxml.jackson.core:jackson-core",
      "purl": "pkg:maven/com.fasterxml.jackson.core/jackson-core"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.22.0, <= 2.22.1"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "2.22.2"
      ],
      "package_name": "com.fasterxml.jackson.core:jackson-core",
      "purl": "pkg:maven/com.fasterxml.jackson.core/jackson-core"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.0.0, <= 3.1.5"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "3.1.6"
      ],
      "package_name": "tools.jackson.core:jackson-core",
      "purl": "pkg:maven/tools.jackson.core/jackson-core"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.2.0, <= 3.2.1"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "3.2.2"
      ],
      "package_name": "tools.jackson.core:jackson-core",
      "purl": "pkg:maven/tools.jackson.core/jackson-core"
    }
  ],
  "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": 0.0091,
  "epss_percentile": 0.5942,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 21.999571666666668,
  "t0_at": "2026-10-16T21:11:03.551000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-16T21:11:03.551000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-16T21:11:03.551000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-68498"
    }
  }
}

published 2026-10-16 23:59Z
last change 2026-10-21 05:31Z

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