Vulnerability-Lookup

CVE-2026-48854 (GCVE-0-2026-48854)

Vulnerability from cvelistv5 – Published: 2026-06-15 21:55 – Updated: 2026-09-24 21:09

Title

Unbounded request body accumulation causes memory exhaustion in elixir-grpc/grpc

Summary

Allocation of Resources Without Limits or Throttling vulnerability in elixir-grpc grpc allows unauthenticated attackers to exhaust the BEAM's memory and crash the server by streaming a large or slow-trickle unary request body. 'Elixir.GRPC.Server.Adapters.Cowboy.Handler':read_full_body/3 (lib/grpc/server/adapters/cowboy/handler.ex) accumulates every received chunk into a single growing binary with no size cap. Additionally, when the client omits the grpc-timeout header, the per-chunk read timeout resolves to :infinity, allowing a slow-trickle client to keep the connection alive indefinitely while memory grows. A single connection is sufficient to exhaust server memory and crash the node. This issue affects grpc: from 0.3.0-alpha.2 before 1.0.0.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-16 14:47 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

EEF mitre root

References

5 references

URL	Tags
https://github.com/elixir-grpc/grpc/security/advi…	vendor-advisoryrelated
https://cna.erlef.org/cves/CVE-2026-48854.html	related
https://osv.dev/vulnerability/EEF-CVE-2026-48854	related
https://github.com/elixir-grpc/grpc/commit/d1abe7…	related
https://github.com/elixir-grpc/grpc/commit/49e18c…	patch

Impacted products

2 products

Vendor	Product	Version	CPE status
elixir-grpc	grpc	Affected: 0.3.0-alpha.2 , < 1.0.0 (semver) cpe:2.3:a:elixir-grpc:grpc::::::::
elixir-grpc	grpc	Affected: d1abe70a6cad6dac4a3f8235d883d7c896989560 , < 49e18c3ec6bb9afe2f712caad3dbab5c56a68a00 (git) cpe:2.3:a:elixir-grpc:grpc::::::::

Date Public

2026-06-15 21:55

Credits

Peter Ullrich Paulo Valente Jonatan Männchen / EEF

Show details on NVD website

JSON

To clipboard

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              "defaultStatus": "unaffected",
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                "\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027"
              ],
              "packageName": "grpc",
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              "versions": [
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                }
              ]
            },
            {
              "collectionURL": "https://github.com",
              "cpes": [
                "cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"
              ],
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                "\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027"
              ],
              "packageName": "elixir-grpc/grpc",
              "packageURL": "pkg:github/elixir-grpc/grpc",
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              "programFiles": [
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              ],
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                  "name": "\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027:read_full_body/3"
                }
              ],
              "repo": "https://github.com/elixir-grpc/grpc",
              "vendor": "elixir-grpc",
              "versions": [
                {
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                  "status": "affected",
                  "version": "d1abe70a6cad6dac4a3f8235d883d7c896989560",
                  "versionType": "git"
                }
              ]
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          "cpeApplicability": [
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              "nodes": [
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                      "criteria": "cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "1.0.0",
                      "versionStartIncluding": "0.3.0-alpha.2",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
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          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Peter Ullrich"
            },
            {
              "lang": "en",
              "type": "remediation developer",
              "value": "Paulo Valente"
            },
            {
              "lang": "en",
              "type": "analyst",
              "value": "Jonatan M\u00e4nnchen / EEF"
            }
          ],
          "datePublic": "2026-06-15T21:55:23.000Z",
          "descriptions": [
            {
              "lang": "en",
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                  "value": "\u003cp\u003eAllocation of Resources Without Limits or Throttling vulnerability in elixir-grpc grpc allows unauthenticated attackers to exhaust the BEAM\u0027s memory and crash the server by streaming a large or slow-trickle unary request body.\u003c/p\u003e\n\u003cp\u003e\u003ccode\u003e\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027:read_full_body/3\u003c/code\u003e (\u003ccode\u003elib/grpc/server/adapters/cowboy/handler.ex\u003c/code\u003e) accumulates every received chunk into a single growing binary with no size cap. Additionally, when the client omits the \u003ccode\u003egrpc-timeout\u003c/code\u003e header, the per-chunk read timeout resolves to \u003ccode\u003e:infinity\u003c/code\u003e, allowing a slow-trickle client to keep the connection alive indefinitely while memory grows. A single connection is sufficient to exhaust server memory and crash the node.\u003c/p\u003e\n\u003cp\u003eThis issue affects grpc: from 0.3.0-alpha.2 before 1.0.0.\u003c/p\u003e"
                },
                {
                  "base64": false,
                  "type": "text/markdown",
                  "value": "Allocation of Resources Without Limits or Throttling vulnerability in elixir-grpc grpc allows unauthenticated attackers to exhaust the BEAM\u0027s memory and crash the server by streaming a large or slow-trickle unary request body.\n\n`\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027:read_full_body/3` (`lib/grpc/server/adapters/cowboy/handler.ex`) accumulates every received chunk into a single growing binary with no size cap. Additionally, when the client omits the `grpc-timeout` header, the per-chunk read timeout resolves to `:infinity`, allowing a slow-trickle client to keep the connection alive indefinitely while memory grows. A single connection is sufficient to exhaust server memory and crash the node.\n\nThis issue affects grpc: from 0.3.0-alpha.2 before 1.0.0."
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              "value": "Allocation of Resources Without Limits or Throttling vulnerability in elixir-grpc grpc allows unauthenticated attackers to exhaust the BEAM\u0027s memory and crash the server by streaming a large or slow-trickle unary request body.\n\n\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027:read_full_body/3 (lib/grpc/server/adapters/cowboy/handler.ex) accumulates every received chunk into a single growing binary with no size cap. Additionally, when the client omits the grpc-timeout header, the per-chunk read timeout resolves to :infinity, allowing a slow-trickle client to keep the connection alive indefinitely while memory grows. A single connection is sufficient to exhaust server memory and crash the node.\n\nThis issue affects grpc: from 0.3.0-alpha.2 before 1.0.0."
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              "capecId": "CAPEC-130",
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          "metrics": [
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          "providerMetadata": {
            "dateUpdated": "2026-09-24T21:09:30.485Z",
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          },
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            },
            {
              "name": "EEF CNA record for CVE-2026-48854",
              "tags": [
                "related"
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              "url": "https://cna.erlef.org/cves/CVE-2026-48854.html"
            },
            {
              "name": "OSV record EEF-CVE-2026-48854",
              "tags": [
                "related"
              ],
              "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48854"
            },
            {
              "name": "Introducing commit d1abe70 in elixir-grpc/grpc",
              "tags": [
                "related"
              ],
              "url": "https://github.com/elixir-grpc/grpc/commit/d1abe70a6cad6dac4a3f8235d883d7c896989560"
            },
            {
              "name": "Fix commit 49e18c3 in elixir-grpc/grpc",
              "tags": [
                "patch"
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              "url": "https://github.com/elixir-grpc/grpc/commit/49e18c3ec6bb9afe2f712caad3dbab5c56a68a00"
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "Unbounded request body accumulation causes memory exhaustion in elixir-grpc/grpc"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "assignerShortName": "EEF",
        "cveId": "CVE-2026-48854",
        "datePublished": "2026-06-15T21:55:23.629Z",
        "dateReserved": "2026-05-25T20:44:10.697Z",
        "dateUpdated": "2026-09-24T21:09:30.485Z",
        "state": "PUBLISHED"
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
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  }
}

FKIE_CVE-2026-48854

Vulnerability from fkie_nvd - Published: 2026-06-15 23:16 - Updated: 2026-09-24 22:17

Severity

8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://cna.erlef.org/cves/CVE-2026-48854.html
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/elixir-grpc/grpc/commit/49e18c3ec6bb9afe2f712caad3dbab5c56a68a00
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/elixir-grpc/grpc/commit/d1abe70a6cad6dac4a3f8235d883d7c896989560
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/elixir-grpc/grpc/security/advisories/GHSA-q8gf-9rvj-gmgj
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://osv.dev/vulnerability/EEF-CVE-2026-48854
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/elixir-grpc/grpc/security/advisories/GHSA-q8gf-9rvj-gmgj

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027"
          ],
          "packageName": "grpc",
          "packageURL": "pkg:hex/grpc",
          "product": "grpc",
          "programFiles": [
            "lib/grpc/server/adapters/cowboy/handler.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027:read_full_body/3"
            }
          ],
          "repo": "https://github.com/elixir-grpc/grpc",
          "vendor": "elixir-grpc",
          "versions": [
            {
              "lessThan": "1.0.0",
              "status": "affected",
              "version": "0.3.0-alpha.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027"
          ],
          "packageName": "elixir-grpc/grpc",
          "packageURL": "pkg:github/elixir-grpc/grpc",
          "product": "grpc",
          "programFiles": [
            "lib/grpc/server/adapters/cowboy/handler.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027:read_full_body/3"
            }
          ],
          "repo": "https://github.com/elixir-grpc/grpc",
          "vendor": "elixir-grpc",
          "versions": [
            {
              "lessThan": "49e18c3ec6bb9afe2f712caad3dbab5c56a68a00",
              "status": "affected",
              "version": "d1abe70a6cad6dac4a3f8235d883d7c896989560",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Allocation of Resources Without Limits or Throttling vulnerability in elixir-grpc grpc allows unauthenticated attackers to exhaust the BEAM\u0027s memory and crash the server by streaming a large or slow-trickle unary request body.\n\n\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027:read_full_body/3 (lib/grpc/server/adapters/cowboy/handler.ex) accumulates every received chunk into a single growing binary with no size cap. Additionally, when the client omits the grpc-timeout header, the per-chunk read timeout resolves to :infinity, allowing a slow-trickle client to keep the connection alive indefinitely while memory grows. A single connection is sufficient to exhaust server memory and crash the node.\n\nThis issue affects grpc: from 0.3.0-alpha.2 before 1.0.0."
    }
  ],
  "id": "CVE-2026-48854",
  "lastModified": "2026-09-24T22:17:00.023",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-48854",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-16T14:47:02.881535Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-15T23:16:45.813",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://cna.erlef.org/cves/CVE-2026-48854.html"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/elixir-grpc/grpc/commit/49e18c3ec6bb9afe2f712caad3dbab5c56a68a00"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/elixir-grpc/grpc/commit/d1abe70a6cad6dac4a3f8235d883d7c896989560"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/elixir-grpc/grpc/security/advisories/GHSA-q8gf-9rvj-gmgj"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48854"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/elixir-grpc/grpc/security/advisories/GHSA-q8gf-9rvj-gmgj"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}

GHSA-Q8GF-9RVJ-GMGJ

Vulnerability from github – Published: 2026-08-25 18:12 – Updated: 2026-08-25 18:12

Summary

gRPC Erlang package has unbounded request body accumulation in `read_full_body/3`

Details

Summary

'Elixir.GRPC.Server.Adapters.Cowboy.Handler':read_full_body/3 accumulates every received chunk into a single growing binary with no size cap. When the client omits the grpc-timeout header, the read timeout resolves to :infinity, allowing a slow-trickle attacker to hold the connection open indefinitely while memory grows. A single unauthenticated connection is sufficient to exhaust BEAM memory and crash the node.

Details

The read loop in lib/grpc/server/adapters/cowboy/handler.ex calls :cowboy_req.read_body/2 in a recursive loop, concatenating each chunk: body <> data. There is no running-total check and no configurable maximum body size. As the loop drains the receive buffer, cowboy issues fresh HTTP/2 WINDOW_UPDATE frames, so the client can keep pushing data indefinitely.

The grpc-timeout header is attacker-supplied and optional. When absent, timeout_left_opt(nil) returns :infinity, so the per-chunk read also has no deadline. The two missing controls compound: a fast client can blast multi-gigabyte payloads directly into memory; a slow client can trickle data forever.

PoC

Start any grpc server exposing a unary RPC (no special configuration required).
Open an HTTP/2 connection and send a POST to any unary RPC path with Content-Type: application/grpc+proto — omit the grpc-timeout header.
Stream a large body (e.g. 1 GiB) in chunks without sending the final END_STREAM flag immediately.
Observe BEAM memory growing proportionally to uploaded data with no server-side cap.

Impact

Affects grpc ≥ 0.3.1. No authentication, no special configuration, and no specific RPC method required, the unbounded read is on the default unary ingress path.

References

Introduction commit: https://github.com/elixir-grpc/grpc/commit/d1abe70a6cad6dac4a3f8235d883d7c896989560
Patch commit: https://github.com/elixir-grpc/grpc/commit/49e18c3ec6bb9afe2f712caad3dbab5c56a68a00

Severity

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Hex",
        "name": "grpc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.1"
            },
            {
              "fixed": "1.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-48854"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-25T18:12:05Z",
    "nvd_published_at": "2026-06-15T23:16:45Z",
    "severity": "HIGH"
  },
  "details": "### Summary\n\n`\u0027Elixir.GRPC.Server.Adapters.Cowboy.Handler\u0027:read_full_body/3` accumulates every received chunk into a single growing binary with no size cap. When the client omits the `grpc-timeout` header, the read timeout resolves to `:infinity`, allowing a slow-trickle attacker to hold the connection open indefinitely while memory grows. A single unauthenticated connection is sufficient to exhaust BEAM memory and crash the node.\n\n### Details\n\nThe read loop in `lib/grpc/server/adapters/cowboy/handler.ex` calls `:cowboy_req.read_body/2` in a recursive loop, concatenating each chunk: `body \u003c\u003e data`. There is no running-total check and no configurable maximum body size. As the loop drains the receive buffer, cowboy issues fresh HTTP/2 `WINDOW_UPDATE` frames, so the client can keep pushing data indefinitely.\n\nThe `grpc-timeout` header is attacker-supplied and optional. When absent, `timeout_left_opt(nil)` returns `:infinity`, so the per-chunk read also has no deadline. The two missing controls compound: a fast client can blast multi-gigabyte payloads directly into memory; a slow client can trickle data forever.\n\n### PoC\n\n1. Start any `grpc` server exposing a unary RPC (no special configuration required).\n2. Open an HTTP/2 connection and send a POST to any unary RPC path with `Content-Type: application/grpc+proto` \u2014 omit the `grpc-timeout` header.\n3. Stream a large body (e.g. 1 GiB) in chunks without sending the final `END_STREAM` flag immediately.\n4. Observe BEAM memory growing proportionally to uploaded data with no server-side cap.\n\n### Impact\n\nAffects `grpc` \u2265 0.3.1. No authentication, no special configuration, and no specific RPC method required, the unbounded read is on the default unary ingress path.\n\n### References\n\n* Introduction commit: https://github.com/elixir-grpc/grpc/commit/d1abe70a6cad6dac4a3f8235d883d7c896989560\n* Patch commit: https://github.com/elixir-grpc/grpc/commit/49e18c3ec6bb9afe2f712caad3dbab5c56a68a00",
  "id": "GHSA-q8gf-9rvj-gmgj",
  "modified": "2026-08-25T18:12:05Z",
  "published": "2026-08-25T18:12:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/elixir-grpc/grpc/security/advisories/GHSA-q8gf-9rvj-gmgj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48854"
    },
    {
      "type": "WEB",
      "url": "https://github.com/elixir-grpc/grpc/pull/542"
    },
    {
      "type": "WEB",
      "url": "https://github.com/elixir-grpc/grpc/commit/49e18c3ec6bb9afe2f712caad3dbab5c56a68a00"
    },
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-48854.html"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/elixir-grpc/grpc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/elixir-grpc/grpc/releases/tag/v1.0.0"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48854"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "gRPC Erlang package has unbounded request body accumulation in `read_full_body/3`"
}

MSRC_CVE-2026-48854

Vulnerability from csaf_microsoft - Published: 2026-06-02 00:00 - Updated: 2026-06-18 01:01

Summary

Unbounded request body accumulation causes memory exhaustion in elixir-grpc/grpc

Scope

1 vulnerability in this advisory, including CVE-2026-48854.

CVE-2026-48854

Known affected: 1 product

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CVE-2026-48854 (GCVE-0-2026-48854)

FKIE_CVE-2026-48854

GHSA-Q8GF-9RVJ-GMGJ

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MSRC_CVE-2026-48854

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