OpenTelemetry-Go multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)_CVE-2026-29181

{
    "lastseen": "",
    "description": "OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.36.0 to 1.40.0, multi-value baggage: header extraction parses each header field-value independently and aggregates members across values. This allows an attacker to amplify cpu and allocations by sending many baggage: header lines, even when each individual value is within the 8192-byte per-value parse limit. This vulnerability is fixed in 1.41.0.",
    "published": "2026-04-07T20:29:13.933Z",
    "modified": "2026-04-08T15:37:02.444Z",
    "type": "cve",
    "title": "OpenTelemetry-Go multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)",
    "source": "GitHub_M",
    "references": "https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-mh2q-q3fh-2475",
    "id": "CVE-2026-29181",
    "bulletinFamily": "",
    "cwe": [
        "CWE-770"
    ],
    "cvelist": null,
    "sourceData": "open-telemetry opentelemetry-go >= 1.36.0, < 1.41.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
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        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "opentelemetry-go",
    "version": ">= 1.36.0, < 1.41.0",
    "vendor": "open-telemetry",
    "ai_description": "",
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    "ai_score": 0
}