Vulnerability-Lookup

FKIE_CVE-2026-32145

Vulnerability from fkie_nvd - Published: 2026-04-02 11:16 - Updated: 2026-04-06 17:17

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

Allocation of Resources Without Limits or Throttling vulnerability in gleam-wisp wisp allows a denial of service via multipart form body parsing. The multipart_body function bypasses configured max_body_size and max_files_size limits. When a multipart boundary is not present in a chunk, the parser takes the MoreRequiredForBody path, which appends the chunk to the output but passes the quota unchanged to the recursive call. Only the final chunk containing the boundary is counted via decrement_quota. The same pattern exists in multipart_headers, where MoreRequiredForHeaders recurses without calling decrement_body_quota. An unauthenticated attacker can exhaust server memory or disk by sending arbitrarily large multipart form submissions in a single HTTP request. This issue affects wisp: from 0.2.0 before 2.2.2.

References

	URL	Tags
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://cna.erlef.org/cves/CVE-2026-32145.html
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/gleam-wisp/wisp/commit/7a978748e12ab29db232c222254465890e1a4a90
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/gleam-wisp/wisp/security/advisories/GHSA-8645-p2v4-73r2
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://osv.dev/vulnerability/EEF-CVE-2026-32145

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Allocation of Resources Without Limits or Throttling vulnerability in gleam-wisp wisp allows a denial of service via multipart form body parsing.\n\nThe multipart_body function bypasses configured max_body_size and max_files_size limits. When a multipart boundary is not present in a chunk, the parser takes the MoreRequiredForBody path, which appends the chunk to the output but passes the quota unchanged to the recursive call. Only the final chunk containing the boundary is counted via decrement_quota. The same pattern exists in multipart_headers, where MoreRequiredForHeaders recurses without calling decrement_body_quota.\n\nAn unauthenticated attacker can exhaust server memory or disk by sending arbitrarily large multipart form submissions in a single HTTP request.\n\nThis issue affects wisp: from 0.2.0 before 2.2.2."
    }
  ],
  "id": "CVE-2026-32145",
  "lastModified": "2026-04-06T17:17:09.707",
  "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"
      }
    ]
  },
  "published": "2026-04-02T11:16:21.870",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://cna.erlef.org/cves/CVE-2026-32145.html"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/gleam-wisp/wisp/commit/7a978748e12ab29db232c222254465890e1a4a90"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/gleam-wisp/wisp/security/advisories/GHSA-8645-p2v4-73r2"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-32145"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}

CVE-2026-32145 (GCVE-0-2026-32145)

Vulnerability from cvelistv5 – Published: 2026-04-02 10:30 – Updated: 2026-04-07 04:07

Title

Multipart form body parser bypasses body size limits in wisp

Summary

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

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

EEF

References

URL

Tags

	https://github.com/gleam-wisp/wisp/security/advis…	vendor-advisoryrelated
	https://cna.erlef.org/cves/CVE-2026-32145.html	related
	https://osv.dev/vulnerability/EEF-CVE-2026-32145	related
	https://github.com/gleam-wisp/wisp/commit/7a97874…	patch

Impacted products

Vendor

Product

Version

gleam-wisp

wisp

Affected: 0.2.0 , < 2.2.2 (semver)
cpe:2.3:a:gleam-wisp:wisp:*:*:*:*:*:*:*:*

gleam-wisp

wisp

Affected: d8e722e22ccb42bda9d0b6248658d37ab4e9b376 , < 7a978748e12ab29db232c222254465890e1a4a90 (git)
cpe:2.3:a:gleam-wisp:wisp:*:*:*:*:*:*:*:*

Credits

John Downey Louis Pilfold

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-32145",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-02T13:29:06.824466Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-06T19:47:22.060Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:gleam-wisp:wisp:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "wisp"
          ],
          "packageName": "wisp",
          "packageURL": "pkg:hex/wisp",
          "product": "wisp",
          "programFiles": [
            "src/wisp.gleam"
          ],
          "programRoutines": [
            {
              "name": "wisp:multipart_body/7"
            },
            {
              "name": "wisp:multipart_headers/5"
            }
          ],
          "repo": "https://github.com/gleam-wisp/wisp",
          "vendor": "gleam-wisp",
          "versions": [
            {
              "lessThan": "2.2.2",
              "status": "affected",
              "version": "0.2.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:gleam-wisp:wisp:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "wisp"
          ],
          "packageName": "gleam-wisp/wisp",
          "packageURL": "pkg:github/gleam-wisp/wisp",
          "product": "wisp",
          "programFiles": [
            "src/wisp.gleam"
          ],
          "programRoutines": [
            {
              "name": "wisp:multipart_body/7"
            },
            {
              "name": "wisp:multipart_headers/5"
            }
          ],
          "repo": "https://github.com/gleam-wisp/wisp.git",
          "vendor": "gleam-wisp",
          "versions": [
            {
              "lessThan": "7a978748e12ab29db232c222254465890e1a4a90",
              "status": "affected",
              "version": "d8e722e22ccb42bda9d0b6248658d37ab4e9b376",
              "versionType": "git"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:gleam-wisp:wisp:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "2.2.2",
                  "versionStartIncluding": "0.2.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "AND"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "John Downey"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Louis Pilfold"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Allocation of Resources Without Limits or Throttling vulnerability in gleam-wisp wisp allows a denial of service via multipart form body parsing.\u003cp\u003eThe \u003ctt\u003emultipart_body\u003c/tt\u003e function bypasses configured \u003ctt\u003emax_body_size\u003c/tt\u003e and \u003ctt\u003emax_files_size\u003c/tt\u003e limits. When a multipart boundary is not present in a chunk, the parser takes the \u003ctt\u003eMoreRequiredForBody\u003c/tt\u003e path, which appends the chunk to the output but passes the quota unchanged to the recursive call. Only the final chunk containing the boundary is counted via \u003ctt\u003edecrement_quota\u003c/tt\u003e. The same pattern exists in \u003ctt\u003emultipart_headers\u003c/tt\u003e, where \u003ctt\u003eMoreRequiredForHeaders\u003c/tt\u003e recurses without calling \u003ctt\u003edecrement_body_quota\u003c/tt\u003e.\u003c/p\u003e\u003cp\u003eAn unauthenticated attacker can exhaust server memory or disk by sending arbitrarily large multipart form submissions in a single HTTP request.\u003c/p\u003e\u003cp\u003eThis issue affects wisp: from 0.2.0 before 2.2.2.\u003c/p\u003e"
            }
          ],
          "value": "Allocation of Resources Without Limits or Throttling vulnerability in gleam-wisp wisp allows a denial of service via multipart form body parsing.\n\nThe multipart_body function bypasses configured max_body_size and max_files_size limits. When a multipart boundary is not present in a chunk, the parser takes the MoreRequiredForBody path, which appends the chunk to the output but passes the quota unchanged to the recursive call. Only the final chunk containing the boundary is counted via decrement_quota. The same pattern exists in multipart_headers, where MoreRequiredForHeaders recurses without calling decrement_body_quota.\n\nAn unauthenticated attacker can exhaust server memory or disk by sending arbitrarily large multipart form submissions in a single HTTP request.\n\nThis issue affects wisp: from 0.2.0 before 2.2.2."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-130",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-130 Excessive Allocation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-07T04:07:10.339Z",
        "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "shortName": "EEF"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "related"
          ],
          "url": "https://github.com/gleam-wisp/wisp/security/advisories/GHSA-8645-p2v4-73r2"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://cna.erlef.org/cves/CVE-2026-32145.html"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://osv.dev/vulnerability/EEF-CVE-2026-32145"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/gleam-wisp/wisp/commit/7a978748e12ab29db232c222254465890e1a4a90"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Multipart form body parser bypasses body size limits in wisp",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Deploy a reverse proxy (such as nginx or HAProxy) in front of the wisp application and configure it to enforce request body size limits."
            }
          ],
          "value": "Deploy a reverse proxy (such as nginx or HAProxy) in front of the wisp application and configure it to enforce request body size limits."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 1.0.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
    "assignerShortName": "EEF",
    "cveId": "CVE-2026-32145",
    "datePublished": "2026-04-02T10:30:47.485Z",
    "dateReserved": "2026-03-10T22:37:29.212Z",
    "dateUpdated": "2026-04-07T04:07:10.339Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-32145

CVE-2026-32145 (GCVE-0-2026-32145)

Tags

Sightings

Nomenclature