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CVE-2026-54285

Estado: AnalizadaMedia (5.3)—

opentelemetry-js is the OpenTelemetry JavaScript Client. Prior to 2.8.0, W3CBaggagePropagator.extract() in @opentelemetry/core does not enforce size limits when parsing inbound baggage HTTP headers. The W3C Baggage specification recommends a maximum of 8,192 bytes and 180 entries; these limits were only enforced on the outbound (inject()) path, not on the inbound (extract()) path. Parsing oversized baggage causes memory allocation proportional to the header size without any cap. This vulnerability is fixed in 2.8.0.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Opentelemetry — Opentelemetry

CWE

Referencias

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{
  "id": "CVE-2026-54285",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-54285",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-23T14:48:29.048253Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "open-telemetry",
          "product": "opentelemetry-js",
          "versions": [
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              "status": "affected",
              "version": "< 2.8.0"
            }
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  ],
  "published": "2026-06-22T18:16:47.077",
  "references": [
    {
      "url": "https://github.com/open-telemetry/opentelemetry-js/security/advisories/GHSA-8988-4f7v-96qf",
      "tags": [
        "Vendor Advisory",
        "Mitigation"
      ],
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    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "security-advisories@github.com",
      "description": [
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          "lang": "en",
          "value": "CWE-770"
        }
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    }
  ],
  "lastModified": "2026-08-27T15:45:19.570",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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  "sourceIdentifier": "security-advisories@github.com"
}