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CVE-2026-68495

CVE-2026-68495

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

GHSA-3v8f-v6vx-fmrm ↗EUVD-2026-90977 ↗

no check availablenot proven exploitable
cve.orgpublic pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).−19h49mkevAttacks confirmed in the real world.
maven:tools.jackson.dataformat:jackson-dataformat-smile >= 3.2.0, <= 3.2.1; >= 3.0.0, <= 3.1.5; >= 2.16.0, <= 2.18.9; >= 2.19.0, <= 2.21.5; >= 2.22.0, <= 2.22.1
fixed in 3.2.2, 3.1.6, 2.18.10, 2.21.6, 2.22.2
CWE-400 Uncontrolled Resource Consumption
ETK-2026-2946Zero's internal tracking ID, independent of the CVE number., permanent identifier
pkg:maven/tools.jackson.dataformat/jackson-dataformat-smile
pkg:maven/tools.jackson.dataformat/jackson-dataformat-cbor
pkg:maven/com.fasterxml.jackson.dataformat/jackson-dataformat-cbor
pkg:maven/com.fasterxml.jackson.dataformat/jackson-dataformat-smile
cvss7.5cna vendorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2h 50msince last run
19mAI analysisAnalysis: how long the AI spent reversing this signal.
timeline
0 = trigger signal
public poc−19h49mtrigger signal (cve.org) +0hwaiting for further signals+662h15m
−18h
−12h
−6h
0

description

Jackson Smile and CBOR dataformat parsers fail to apply the configured property-name length limit. An attacker who can submit Smile or CBOR data to a parsing endpoint can cause excessive memory use and deny service by sending documents with oversized object property names.

mitigation

Upgrade the affected Smile and CBOR modules to tools.jackson 3.1.6 or 3.2.2, or to com.fasterxml.jackson 2.18.10, 2.21.6, or 2.22.2, as appropriate for the release line. Until upgraded, enforce request-size limits before data reaches the parser and restrict untrusted access to Smile and CBOR parsing endpoints.

fixed in 3.2.2, 3.1.6, 2.18.10, 2.21.6, 2.22.2

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.
–
agent run time
19m
cve.org record, t = 0The moment cve.org publishes the CVE in full.
2026-10-01 17:36Z
Δ to public pocExploit code has been published by someone. Source signals can also carry a PoC (Proof of Concept).
−19h49m
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. 2026-10-01 17:36Z
  2. 2026-10-01 17:36Z
  3. 2026-10-01 17:36Z

this entry in the feed

GET /api/v1/feed/CVE-2026-68495

{
  "etk_id": "ETK-2026-2946",
  "cve_id": "CVE-2026-68495",
  "display_id": "CVE-2026-68495",
  "ghsa_id": "GHSA-3v8f-v6vx-fmrm",
  "euvd_id": "EUVD-2026-90977",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Missing property-name length validation in Jackson Smile and CBOR",
  "summary": "Jackson Smile and CBOR dataformat parsers fail to apply the configured property-name length limit. An attacker who can submit Smile or CBOR data to a parsing endpoint can cause excessive memory use and deny service by sending documents with oversized object property names.",
  "mitigation": "Upgrade the affected Smile and CBOR modules to tools.jackson 3.1.6 or 3.2.2, or to com.fasterxml.jackson 2.18.10, 2.21.6, or 2.22.2, as appropriate for the release line. Until upgraded, enforce request-size limits before data reaches the parser and restrict untrusted access to Smile and CBOR parsing endpoints.",
  "vendor": "maven",
  "product": "maven:tools.jackson.dataformat:jackson-dataformat-smile",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.2.0, <= 3.2.1"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "3.2.2"
      ],
      "package_name": "tools.jackson.dataformat:jackson-dataformat-smile",
      "purl": "pkg:maven/tools.jackson.dataformat/jackson-dataformat-smile"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.0.0, <= 3.1.5"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "3.1.6"
      ],
      "package_name": "tools.jackson.dataformat:jackson-dataformat-cbor",
      "purl": "pkg:maven/tools.jackson.dataformat/jackson-dataformat-cbor"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.16.0, <= 2.18.9"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "2.18.10"
      ],
      "package_name": "com.fasterxml.jackson.dataformat:jackson-dataformat-cbor",
      "purl": "pkg:maven/com.fasterxml.jackson.dataformat/jackson-dataformat-cbor"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.19.0, <= 2.21.5"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "2.21.6"
      ],
      "package_name": "com.fasterxml.jackson.dataformat:jackson-dataformat-cbor",
      "purl": "pkg:maven/com.fasterxml.jackson.dataformat/jackson-dataformat-cbor"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.22.0, <= 2.22.1"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "2.22.2"
      ],
      "package_name": "com.fasterxml.jackson.dataformat:jackson-dataformat-cbor",
      "purl": "pkg:maven/com.fasterxml.jackson.dataformat/jackson-dataformat-cbor"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.16.0, <= 2.18.9"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "2.18.10"
      ],
      "package_name": "com.fasterxml.jackson.dataformat:jackson-dataformat-smile",
      "purl": "pkg:maven/com.fasterxml.jackson.dataformat/jackson-dataformat-smile"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.19.0, <= 2.21.5"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "2.21.6"
      ],
      "package_name": "com.fasterxml.jackson.dataformat:jackson-dataformat-smile",
      "purl": "pkg:maven/com.fasterxml.jackson.dataformat/jackson-dataformat-smile"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.22.0, <= 2.22.1"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "2.22.2"
      ],
      "package_name": "com.fasterxml.jackson.dataformat:jackson-dataformat-smile",
      "purl": "pkg:maven/com.fasterxml.jackson.dataformat/jackson-dataformat-smile"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.2.0, <= 3.2.1"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "3.2.2"
      ],
      "package_name": "tools.jackson.dataformat:jackson-dataformat-cbor",
      "purl": "pkg:maven/tools.jackson.dataformat/jackson-dataformat-cbor"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.0.0, <= 3.1.5"
      ],
      "ecosystem": "maven",
      "fixed_versions": [
        "3.1.6"
      ],
      "package_name": "tools.jackson.dataformat:jackson-dataformat-smile",
      "purl": "pkg:maven/tools.jackson.dataformat/jackson-dataformat-smile"
    }
  ],
  "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": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 18.96980795,
  "t0_at": "2026-10-01T17:36:22.482000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-09-30T21:47:46+00:00",
      "days": -0.8254222453703703,
      "is_lower_bound": false,
      "measured_at": "2026-10-01T17:36:22.482000+00:00",
      "url": "https://github.com/FasterXML/jackson-dataformats-binary/security/advisories/GHSA-3v8f-v6vx-fmrm"
    },
    "trigger_signal": {
      "at": "2026-10-01T17:36:22.482000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-01T17:36:22.482000+00:00",
      "url": "https://github.com/FasterXML/jackson-dataformats-binary/security/advisories/GHSA-3v8f-v6vx-fmrm"
    }
  }
}

published 2026-10-29 07:32Z
last change 2026-10-29 10:23Z

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