{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.0.0-rc.32"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "425f28dc82c8df1b6f7e1ab20ea1a0a15a3c355f"
            },
            {
              "fixed": "c4c9db0b41346a33aff31a51f1f09c3a17757f10"
            }
          ],
          "repo": "https://github.com/dmonad/lib0",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-r5c8-rf4w-qrq8"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102360.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "last_affected": "0.2.1-0.2.117"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "A missing bounds check in the binary decoder in lib0, versions 0.2.1-0.2.117 and earlier and 1.0.0-rc.32 and earlier, lets any unauthenticated remote peer read adjacent process memory and receive it back. `readUint8Array` never compares the wire-supplied length against the decoder's own view, so one over-long length prefix returns whatever the host process allocated next: other tenants' document content, personal data, and live bearer session tokens**, recovered in full and at will. An attacker who can supply bytes to a lib0 decoder which means any peer that can open a socket, including before authentication reads adjacent process memory and, where the consumer echoes, stores or re-serves the decoded value, receives it back. This is patched in version 0.2.118 and 1.0.0-rc.33.",
  "id": "CVE-2026-102360",
  "modified": "2026-10-02T03:31:03.261922475Z",
  "published": "2026-09-29T13:11:55.735Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102360.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/dmonad/lib0/security/advisories/GHSA-r5c8-rf4w-qrq8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-102360"
    },
    {
      "type": "FIX",
      "url": "https://github.com/dmonad/lib0/commit/425f28dc82c8df1b6f7e1ab20ea1a0a15a3c355f"
    },
    {
      "type": "FIX",
      "url": "https://github.com/dmonad/lib0/commit/c4c9db0b41346a33aff31a51f1f09c3a17757f10"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "lib0 `readUint8Array` performs an unbounded read past the end of the decoder’s view, disclosing adjacent process memory"
}