CVE-2026-66373 (GCVE-0-2026-66373)

Vulnerability from cvelistv5 – Published: 2026-07-25 00:08 – Updated: 2026-07-25 00:08
VLAI
Summary
Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.
CWE
Assigner
Impacted products
Vendor Product Version
Redis Redis Affected: 0 , < 8.8.0 (semver)
Create a notification for this product.
Show details on NVD website

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          "vendor": "Redis",
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                }
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        }
      ],
      "metrics": [
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            "attackVector": "NETWORK",
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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        {
          "descriptions": [
            {
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              "description": "CWE-415 Double Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      "providerMetadata": {
        "dateUpdated": "2026-07-25T00:08:35.982Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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          "url": "https://github.com/redis/redis/compare/8.6.4...8.8.0"
        },
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        },
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          "url": "https://news.ycombinator.com/item?id=49024938"
        }
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-66373",
    "datePublished": "2026-07-25T00:08:35.982Z",
    "dateReserved": "2026-07-25T00:08:35.560Z",
    "dateUpdated": "2026-07-25T00:08:35.982Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-66373",
      "date": "2026-07-25",
      "epss": "0.00472",
      "percentile": "0.38219"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-66373\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2026-07-25T01:16:26.277\",\"lastModified\":\"2026-07-25T01:16:26.277\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.\"}],\"affected\":[{\"source\":\"cve@mitre.org\",\"affectedData\":[{\"vendor\":\"Redis\",\"product\":\"Redis\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"8.8.0\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@mitre.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.6,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"cve@mitre.org\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-415\"}]}],\"references\":[{\"url\":\"https://github.com/berabuddies/redis-poc\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/redis/redis/compare/8.6.4...8.8.0\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/redis/redis/pull/15081\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://news.ycombinator.com/item?id=49024938\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://x.com/Fried_rice/status/2080059356322918777\",\"source\":\"cve@mitre.org\"}]}}"
  }
}



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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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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