GHSA-R6FJ-869H-4F6Q

Vulnerability from github – Published: 2026-06-23 21:59 – Updated: 2026-06-23 21:59
VLAI
Summary
OHttpVersionChunkDraft: Missing Final-Chunk Enforcement Leads to Undetected Stream Truncation
Details

The codec-ohttp implementation of draft-ietf-ohai-chunked-ohttp does not verify that a cryptographically-signed final chunk was received before the outer HTTP body terminates. An on-path adversary (the OHTTP relay itself, or any MITM on the relay↔gateway or relay↔client transport) can forward a prefix of a legitimate chunked-OHTTP message—cut at a non-final chunk boundary—and close the outer body cleanly, producing no decryption error and no exception in the receiving application.

Severity
6.6 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.netty.incubator:netty-incubator-codec-ohttp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.22.Final"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-48480"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-325"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-23T21:59:03Z",
    "nvd_published_at": "2026-06-04T19:16:30Z",
    "severity": "MODERATE"
  },
  "details": "The codec-ohttp implementation of draft-ietf-ohai-chunked-ohttp does not verify that a cryptographically-signed final chunk was received before the outer HTTP body terminates. An on-path adversary (the OHTTP relay itself, or any MITM on the relay\u2194gateway or relay\u2194client transport) can forward a prefix of a legitimate chunked-OHTTP message\u2014cut at a non-final chunk boundary\u2014and close the outer body cleanly, producing no decryption error and no exception in the receiving application.",
  "id": "GHSA-r6fj-869h-4f6q",
  "modified": "2026-06-23T21:59:03Z",
  "published": "2026-06-23T21:59:03Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty-incubator-codec-ohttp/security/advisories/GHSA-r6fj-869h-4f6q"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48480"
    },
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty-incubator-codec-ohttp/commit/28f977f293591a4e837bd59ceb441f9f70349915"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/netty/netty-incubator-codec-ohttp"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OHttpVersionChunkDraft: Missing Final-Chunk Enforcement Leads to Undetected Stream Truncation"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.