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    2 vulnerabilities found for quarkus-langchain4j by quarkiverse

    CVE-2026-108748 (GCVE-0-2026-108748)

    Vulnerability from nvd – Published: 2026-10-11 12:19 – Updated: 2026-10-11 12:19
    VLAI
    Title
    Quarkus LangChain4j 1.9.0 through 1.14.1 Memory Exhaustion via /_chat/routes WebSocket
    Summary
    Quarkus LangChain4j 1.9.0 through 1.14.1 contains a missing release of memory vulnerability in the chat-scopes WebSocket /_chat/routes endpoint that allows unauthenticated remote clients to exhaust server memory. Attackers can send repeated CONNECT frames reusing one chatId, leaving orphaned scopes in activeScopes until the JVM exits and degrading availability.
    Severity
    6.9 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    CWE
    • CWE-401 - Missing Release of Memory after Effective Lifetime
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 5534 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    quarkiverse quarkus-langchain4j Affected: 1.9.0 , ≤ 1.14.1 (semver)
    		Create a notification for this product.
    Date Public
    2026-10-10 00:00
    Credits
    HaiND from the Post and Telecommunication Institute of Technology
    Show details on NVD website
    To clipboard 

    {
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:maven/io.quarkiverse.langchain4j/quarkus-langchain4j-chat-scopes-websocket",
          "product": "quarkus-langchain4j",
          "repo": "https://github.com/quarkiverse/quarkus-langchain4j",
          "vendor": "quarkiverse",
          "versions": [
            {
              "lessThanOrEqual": "1.14.1",
              "status": "affected",
              "version": "1.9.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "HaiND from the Post and Telecommunication Institute of Technology"
        }
      ],
      "datePublic": "2026-10-10T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Quarkus LangChain4j 1.9.0 through 1.14.1 contains a missing release of memory vulnerability in the chat-scopes WebSocket /_chat/routes endpoint that allows unauthenticated remote clients to exhaust server memory. Attackers can send repeated CONNECT frames reusing one chatId, leaving orphaned scopes in activeScopes until the JVM exits and degrading availability."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
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            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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            "version": "3.1"
          },
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      ],
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        },
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          "url": "https://github.com/quarkiverse/quarkus-langchain4j"
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          "tags": [
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          "url": "https://www.vulncheck.com/advisories/quarkus-langchain4j-1.9.0-through-1.14.1-memory-exhaustion-via-chat-routes-websocket"
        }
      ],
      "title": "Quarkus LangChain4j 1.9.0 through 1.14.1 Memory Exhaustion via /_chat/routes WebSocket",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
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  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-108748",
    "datePublished": "2026-10-11T12:19:49.295Z",
    "dateReserved": "2026-10-11T01:53:24.418Z",
    "dateUpdated": "2026-10-11T12:19:49.295Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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    CVE-2026-108748 (GCVE-0-2026-108748)

    Vulnerability from cvelistv5 – Published: 2026-10-11 12:19 – Updated: 2026-10-11 12:19
    VLAI
    Title
    Quarkus LangChain4j 1.9.0 through 1.14.1 Memory Exhaustion via /_chat/routes WebSocket
    Summary
    Quarkus LangChain4j 1.9.0 through 1.14.1 contains a missing release of memory vulnerability in the chat-scopes WebSocket /_chat/routes endpoint that allows unauthenticated remote clients to exhaust server memory. Attackers can send repeated CONNECT frames reusing one chatId, leaving orphaned scopes in activeScopes until the JVM exits and degrading availability.
    Severity
    6.9 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    CWE
    • CWE-401 - Missing Release of Memory after Effective Lifetime
    Assigner
    VulnCheck CNA under the mitre root
    CNA scorecard B 84/100 over 5534 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    quarkiverse quarkus-langchain4j Affected: 1.9.0 , ≤ 1.14.1 (semver)
    		Create a notification for this product.
    Date Public
    2026-10-10 00:00
    Credits
    HaiND from the Post and Telecommunication Institute of Technology
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:maven/io.quarkiverse.langchain4j/quarkus-langchain4j-chat-scopes-websocket",
          "product": "quarkus-langchain4j",
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          "versions": [
            {
              "lessThanOrEqual": "1.14.1",
              "status": "affected",
              "version": "1.9.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "HaiND from the Post and Telecommunication Institute of Technology"
        }
      ],
      "datePublic": "2026-10-10T00:00:00.000Z",
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        {
          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
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            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
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          "format": "CVSS"
        },
        {
          "cvssV3_1": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
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          },
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              "description": "Missing Release of Memory after Effective Lifetime",
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              "type": "CWE"
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      ],
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          "url": "https://hackmd.io/@haind/quarkus-langchain4j-chatscope-orphan-leak"
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