Lightwell Security Advisory: netty-handler-ssl-ocsp 4.1.100.Final-rhlw-00001

{
  "id": "7f473975c8789fc83a4c9a13f442afd9dc460794f3b85e6b99e4ea8da458705f",
  "url": "https://osv.dev/vulnerability/RHLW-2026-7e27d228834c9346",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Lightwell Security Advisory: netty-handler-ssl-ocsp 4.1.100.Final-rhlw-00001",
    "summary": "Red Hat Lightwell has released io.netty:netty-handler-ssl-ocsp 4.1.100.Final-rhlw-00001 with backported fixes for CVE-2026-56820, CVE-2026-56821, and CVE-2026-56822. CVE-2026-56820: Netty: Missing CertificateID Validation in OCSP Response Allows Replay Attacks CVE-2026-56821: Netty: Out-of-date OCSP Responses Accepted by OcspServerCertificateValidator CVE-2026-56822: Netty: TOCTOU in OcspServerCertificateValidator This patched artifact is a drop-in replacement for io.netty:netty-handler-ssl-ocsp 4.1.100.Final from Maven Central.",
    "evidence": "osv:RHLW-2026-7e27d228834c9346",
    "products": [
      {
        "name": {
          "value": "io.netty:netty-handler-ssl-ocsp",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.100.Final-rhlw-00001",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.100.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.86.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.87.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.88.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.89.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.90.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.91.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.92.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.93.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.94.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.95.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.96.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.97.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.98.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.99.Final",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "RHLW-2026-7e27d228834c9346",
      "aliases": [
        "RHLW-2026-7e27d228834c9346"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.1.100.Final-rhlw-00001"
                }
              ]
            }
          ],
          "package": {
            "name": "io.netty:netty-handler-ssl-ocsp",
            "purl": "pkg:maven/io.netty/netty-handler-ssl-ocsp",
            "ecosystem": "Red Hat Lightwell:Maven"
          },
          "versions": [
            "4.1.100.Final",
            "4.1.86.Final",
            "4.1.87.Final",
            "4.1.88.Final",
            "4.1.89.Final",
            "4.1.90.Final",
            "4.1.91.Final",
            "4.1.92.Final",
            "4.1.93.Final",
            "4.1.94.Final",
            "4.1.95.Final",
            "4.1.96.Final",
            "4.1.97.Final",
            "4.1.98.Final",
            "4.1.99.Final"
          ],
          "database_specific": {
            "source": "https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-7e27d228834c9346.json",
            "lightwell": {
              "repository_url": "https://packages.redhat.com/lightwell/java/remediated/",
              "remediated_version": "4.1.100.Final-rhlw-00001",
              "backport_base_version": "4.1.100.Final"
            }
          }
        }
      ],
      "modified": "2026-10-27T04:00:09.766307059Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-56820",
        "CVE-2026-56821",
        "CVE-2026-56822",
        "GHSA-272m-gcwp-mpwg",
        "GHSA-g7hg-vrcf-mvmr",
        "GHSA-wc96-39fc-566f"
      ],
      "references": [
        "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final",
        "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56820.json",
        "https://github.com/netty/netty/security/advisories/GHSA-272m-gcwp-mpwg",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-56820",
        "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b",
        "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6",
        "https://github.com/advisories/GHSA-272m-gcwp-mpwg",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56821.json",
        "https://github.com/netty/netty/security/advisories/GHSA-g7hg-vrcf-mvmr",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-56821",
        "https://github.com/advisories/GHSA-g7hg-vrcf-mvmr",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56822.json",
        "https://github.com/netty/netty/security/advisories/GHSA-wc96-39fc-566f",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-56822",
        "https://github.com/advisories/GHSA-wc96-39fc-566f"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-56820",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-56821",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-56822",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 460125,
  "published_at": "2026-10-12T16:58:21+00:00"
}