FKIE_CVE-2026-32685

Vulnerability from fkie_nvd - Published: 2026-06-02 14:16 - Updated: 2026-07-22 19:10
Severity
4.6 (Medium) - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Summary
Path traversal vulnerability in Gleam's handling of custom documentation pages allows arbitrary file read and file write outside the intended documentation output directory. The documentation.pages entries from gleam.toml are incorporated into filesystem paths without sufficient validation or confinement to the intended project and documentation output directories. The documentation.pages[].path field can be used to write generated documentation files outside the intended build/dev/docs/<package>/ output directory. The documentation.pages[].source field can be used to read files outside the project directory and embed their contents into generated documentation output. An attacker who can convince a victim to run gleam docs build on an untrusted project, or with untrusted gleam.toml content, can cause local files readable by the victim to be included in generated documentation artifacts, and can cause generated documentation files to be written outside the intended docs output directory. This issue affects Gleam from 1.16.0 until 1.17.0.
References
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://cna.erlef.org/cves/CVE-2026-32685.html
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://github.com/gleam-lang/gleam/commit/81570611906b6b0039c948037094d09a68700f3a
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://github.com/gleam-lang/gleam/commit/c9230cd3045de8fd8481dae3a4557c0146df1430
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://github.com/gleam-lang/gleam/security/advisories/GHSA-wjx8-7w8m-p4v7
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://osv.dev/vulnerability/EEF-CVE-2026-32685
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/gleam-lang/gleam/security/advisories/GHSA-wjx8-7w8m-p4v7
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "compiler-core",
            "compiler-cli"
          ],
          "packageName": "gleam",
          "packageURL": "pkg:sid/gleam.run/gleam",
          "product": "Gleam",
          "programFiles": [
            "compiler-core/src/config.rs",
            "compiler-core/src/docs.rs",
            "compiler-cli/src/docs.rs",
            "compiler-cli/src/fs.rs"
          ],
          "programRoutines": [
            {
              "name": "compiler_cli::docs::build_project"
            },
            {
              "name": "compiler_core::docs::generate_html"
            }
          ],
          "vendor": "Gleam",
          "versions": [
            {
              "lessThan": "1.17.0",
              "status": "affected",
              "version": "1.16.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "compiler-core",
            "compiler-cli"
          ],
          "packageName": "gleam-lang/gleam",
          "packageURL": "pkg:github/gleam-lang/gleam",
          "product": "Gleam",
          "programFiles": [
            "compiler-core/src/config.rs",
            "compiler-core/src/docs.rs",
            "compiler-cli/src/docs.rs",
            "compiler-cli/src/fs.rs"
          ],
          "programRoutines": [
            {
              "name": "compiler_cli::docs::build_project"
            },
            {
              "name": "compiler_core::docs::generate_html"
            }
          ],
          "repo": "https://github.com/gleam-lang/gleam",
          "vendor": "Gleam",
          "versions": [
            {
              "lessThan": "1.17.0",
              "status": "affected",
              "version": "1.16.0",
              "versionType": "semver"
            },
            {
              "lessThan": "81570611906b6b0039c948037094d09a68700f3a",
              "status": "affected",
              "version": "61ed8deb6572b5591ad17d6302c1a38607522f16",
              "versionType": "git"
            }
          ]
        },
        {
          "collectionURL": "https://ghcr.io",
          "cpes": [
            "cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "compiler-core",
            "compiler-cli"
          ],
          "packageName": "gleam-lang/gleam",
          "packageURL": "pkg:oci/gleam?repository_url=ghcr.io/gleam-lang",
          "product": "Gleam",
          "programFiles": [
            "compiler-core/src/config.rs",
            "compiler-core/src/docs.rs",
            "compiler-cli/src/docs.rs",
            "compiler-cli/src/fs.rs"
          ],
          "programRoutines": [
            {
              "name": "compiler_cli::docs::build_project"
            },
            {
              "name": "compiler_core::docs::generate_html"
            }
          ],
          "vendor": "Gleam",
          "versions": [
            {
              "lessThan": "v1.17.0-elixir",
              "status": "affected",
              "version": "v1.16.0-elixir",
              "versionType": "other"
            },
            {
              "lessThan": "v1.17.0-erlang",
              "status": "affected",
              "version": "v1.16.0-erlang",
              "versionType": "other"
            },
            {
              "lessThan": "v1.17.0-node",
              "status": "affected",
              "version": "v1.16.0-node",
              "versionType": "other"
            },
            {
              "lessThan": "v1.17.0-node-slim",
              "status": "affected",
              "version": "v1.16.0-node-slim",
              "versionType": "other"
            },
            {
              "lessThan": "v1.17.0-elixir-slim",
              "status": "affected",
              "version": "v1.16.0-elixir-slim",
              "versionType": "other"
            },
            {
              "lessThan": "v1.17.0-erlang-slim",
              "status": "affected",
              "version": "v1.16.0-erlang-slim",
              "versionType": "other"
            },
            {
              "lessThan": "v1.17.0-erlang-alpine",
              "status": "affected",
              "version": "v1.16.0-erlang-alpine",
              "versionType": "other"
            },
            {
              "lessThan": "v1.17.0-elixir-alpine",
              "status": "affected",
              "version": "v1.16.0-elixir-alpine",
              "versionType": "other"
            },
            {
              "lessThan": "v1.17.0-node-alpine",
              "status": "affected",
              "version": "v1.16.0-node-alpine",
              "versionType": "other"
            },
            {
              "lessThan": "v1.17.0-scratch",
              "status": "affected",
              "version": "v1.16.0-scratch",
              "versionType": "other"
            }
          ]
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Path traversal vulnerability in Gleam\u0027s handling of custom documentation pages allows arbitrary file read and file write outside the intended documentation output directory.\n\nThe documentation.pages entries from gleam.toml are incorporated into filesystem paths without sufficient validation or confinement to the intended project and documentation output directories. The documentation.pages[].path field can be used to write generated documentation files outside the intended build/dev/docs/\u003cpackage\u003e/ output directory. The documentation.pages[].source field can be used to read files outside the project directory and embed their contents into generated documentation output.\n\nAn attacker who can convince a victim to run gleam docs build on an untrusted project, or with untrusted gleam.toml content, can cause local files readable by the victim to be included in generated documentation artifacts, and can cause generated documentation files to be written outside the intended docs output directory.\n\nThis issue affects Gleam from 1.16.0 until 1.17.0."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de salto de ruta en el manejo de Gleam de las p\u00e1ginas de documentaci\u00f3n personalizadas permite la lectura y escritura arbitraria de archivos fuera del directorio de salida de documentaci\u00f3n previsto.\n\nLas entradas documentation.pages de gleam.toml se incorporan en rutas del sistema de archivos sin suficiente validaci\u00f3n o confinamiento a los directorios de salida de proyecto y documentaci\u00f3n previstos. El campo documentation.pages[].path puede usarse para escribir archivos de documentaci\u00f3n generados fuera del directorio de salida previsto build/dev/docs/\u003cpackage\u003e/. El campo documentation.pages[].source puede usarse para leer archivos fuera del directorio del proyecto e incrustar su contenido en la salida de documentaci\u00f3n generada.\n\nUn atacante que pueda convencer a una v\u00edctima de ejecutar gleam docs build en un proyecto no confiable, o con contenido gleam.toml no confiable, puede hacer que archivos locales legibles por la v\u00edctima se incluyan en artefactos de documentaci\u00f3n generados, y puede hacer que los archivos de documentaci\u00f3n generados se escriban fuera del directorio de salida de docs previsto.\n\nEste problema afecta a Gleam desde la versi\u00f3n 1.16.0 hasta la 1.17.0."
    }
  ],
  "id": "CVE-2026-32685",
  "lastModified": "2026-07-22T19:10:00.120",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "LOCAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 4.6,
          "baseSeverity": "MEDIUM",
          "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": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-32685",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-02T15:06:11.916565Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-02T14:16:50.610",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://cna.erlef.org/cves/CVE-2026-32685.html"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/gleam-lang/gleam/commit/81570611906b6b0039c948037094d09a68700f3a"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/gleam-lang/gleam/commit/c9230cd3045de8fd8481dae3a4557c0146df1430"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/gleam-lang/gleam/security/advisories/GHSA-wjx8-7w8m-p4v7"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-32685"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/gleam-lang/gleam/security/advisories/GHSA-wjx8-7w8m-p4v7"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}



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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.
  • 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.