CVE-2026-11751 (GCVE-0-2026-11751)

Vulnerability from cvelistv5 – Published: 2026-08-19 01:19 – Updated: 2026-08-19 01:20
VLAI
Summary
A vulnerability has been identified in armeria-xds versions prior to 1.41.0, where xDS upstream TLS peer verification may be silently disabled, allowing man-in-the-middle attacks against xDS-managed upstream connections.
CWE
Impacted products
Vendor Product Version CPE status
LY Corporation Armeria Unaffected: 1.41.0 , < * (custom)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "product": "Armeria",
          "vendor": "LY Corporation",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1.41.0",
              "versionType": "custom"
            }
          ]
        }
      ],
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          "value": "A vulnerability has been identified in armeria-xds versions prior to 1.41.0, where xDS upstream TLS peer verification may be silently disabled, allowing man-in-the-middle attacks against xDS-managed upstream connections."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-295",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T01:20:06.238Z",
        "orgId": "657f3255-0560-4aed-82e4-7f579ec6acfb",
        "shortName": "LY-Corporation"
      },
      "references": [
        {
          "url": "https://line.github.io/security-advisory-blog/CVE-2026-11751/"
        },
        {
          "url": "https://github.com/line/armeria/security/advisories/GHSA-6qfw-3mvj-m6v5"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "657f3255-0560-4aed-82e4-7f579ec6acfb",
    "assignerShortName": "LY-Corporation",
    "cveId": "CVE-2026-11751",
    "datePublished": "2026-08-19T01:19:34.960Z",
    "dateReserved": "2026-06-09T06:50:05.781Z",
    "dateUpdated": "2026-08-19T01:20:06.238Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-11751",
      "date": "2026-08-19",
      "epss": "0.00245",
      "percentile": "0.15984"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-11751\",\"sourceIdentifier\":\"dl_cve@linecorp.com\",\"published\":\"2026-08-19T02:16:12.530\",\"lastModified\":\"2026-08-19T02:16:12.530\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability has been identified in armeria-xds versions prior to 1.41.0, where xDS upstream TLS peer verification may be silently disabled, allowing man-in-the-middle attacks against xDS-managed upstream connections.\"}],\"affected\":[{\"source\":\"dl_cve@linecorp.com\",\"affectedData\":[{\"vendor\":\"LY Corporation\",\"product\":\"Armeria\",\"defaultStatus\":\"affected\",\"versions\":[{\"version\":\"1.41.0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"dl_cve@linecorp.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"references\":[{\"url\":\"https://github.com/line/armeria/security/advisories/GHSA-6qfw-3mvj-m6v5\",\"source\":\"dl_cve@linecorp.com\"},{\"url\":\"https://line.github.io/security-advisory-blog/CVE-2026-11751/\",\"source\":\"dl_cve@linecorp.com\"}]}}"
  }
}



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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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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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