CVE-2026-124586 (GCVE-0-2026-124586)

Vulnerability from cvelistv5 – Published: 2026-11-09 09:15 – Updated: 2026-11-09 09:15
VLAI
Title
Tencent RapidJSON diyfp.h GetCachedPowerByIndex out-of-bounds
Summary
A vulnerability was determined in Tencent RapidJSON 1.1.0. Impacted is the function GetCachedPowerByIndex in the library include/rapidjson/internal/diyfp.h. This manipulation of the argument decimalPosition causes out-of-bounds read. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
CWE
Assigner
VulDB CNA
References
URL Tags
https://vuldb.com/vuln/433010 vdb-entrytechnical-description
https://vuldb.com/vuln/433010/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-124586 third-party-advisory
https://vuldb.com/submit/1039172 third-party-advisory
https://github.com/Tencent/rapidjson/issues/2405 exploitissue-tracking
https://github.com/Tencent/rapidjson/ product
Impacted products
Vendor Product Version
Tencent RapidJSON Affected: 1.1.0
    cpe:2.3:a:tencent:rapidjson:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:tencent:rapidjson:*:*:*:*:*:*:*:*"
          ],
          "product": "RapidJSON",
          "vendor": "Tencent",
          "versions": [
            {
              "status": "affected",
              "version": "1.1.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "shuidajiao (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was determined in Tencent RapidJSON 1.1.0. Impacted is the function GetCachedPowerByIndex in the library include/rapidjson/internal/diyfp.h. This manipulation of the argument decimalPosition causes out-of-bounds read. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 7.5,
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "Out-of-Bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-09T09:15:15.469Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-433010 | Tencent RapidJSON diyfp.h GetCachedPowerByIndex out-of-bounds",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/433010"
        },
        {
          "name": "VDB-433010 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/433010/cti"
        },
        {
          "name": "CVE-2026-124586 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-124586"
        },
        {
          "name": "Submit #1039172 | tencent RapidJSON 1.1.0 Out-of-Bounds Read",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/1039172"
        },
        {
          "tags": [
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/Tencent/rapidjson/issues/2405"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/Tencent/rapidjson/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-11-08T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-11-08T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-11-08T21:29:07.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Tencent RapidJSON diyfp.h GetCachedPowerByIndex out-of-bounds",
      "x_generator": [
        "VulDB PVTS v202611"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-124586",
    "datePublished": "2026-11-09T09:15:15.469Z",
    "dateReserved": "2026-11-08T20:24:01.430Z",
    "dateUpdated": "2026-11-09T09:15:15.469Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



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