Vulnerability-Lookup

FKIE_CVE-2026-49762

Vulnerability from fkie_nvd - Published: 2026-06-09 14:16 - Updated: 2026-06-09 14:47

Severity

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

Summary

Uncontrolled Resource Consumption vulnerability in the Elixir standard library's Version module allows an attacker who controls a version string to cause a denial of service through CPU and memory exhaustion. The version parser converts numeric version components (major, minor, patch and numeric pre-release/build identifiers) to integers without bounding their length. A single large all-digit component therefore forces a super-linear, non-yielding base-10 to arbitrary-precision integer conversion (String.to_integer/1, i.e. :erlang.binary_to_integer/1) that pins a BEAM scheduler, and a larger component raises an uncaught SystemLimitError that crashes the calling process. A single moderately sized string (around one megabyte) is enough; no authentication is required. This is reachable from the public entry points Version.parse/1, Version.parse!/1, Version.match?/3, Version.compare/2, and Version.parse_requirement/1, which applications routinely call on untrusted input such as HTTP parameters, dependency-manifest fields, and package metadata. This vulnerability is associated with program files lib/version.ex and program routines 'Elixir.Version.Parser':parse_digits/2. This issue affects Elixir: from 1.5.0 before 1.20.1.

References

	URL	Tags
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://cna.erlef.org/cves/CVE-2026-49762.html
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/elixir-lang/elixir/commit/c64417d72fd5c7d09e963ca3ac5fa2b140978d9e
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/elixir-lang/elixir/security/advisories/GHSA-w2h8-8x3g-278p
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://osv.dev/vulnerability/EEF-CVE-2026-49762

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Uncontrolled Resource Consumption vulnerability in the Elixir standard library\u0027s Version module allows an attacker who controls a version string to cause a denial of service through CPU and memory exhaustion.\n\nThe version parser converts numeric version components (major, minor, patch and numeric pre-release/build identifiers) to integers without bounding their length. A single large all-digit component therefore forces a super-linear, non-yielding base-10 to arbitrary-precision integer conversion (String.to_integer/1, i.e. :erlang.binary_to_integer/1) that pins a BEAM scheduler, and a larger component raises an uncaught SystemLimitError that crashes the calling process. A single moderately sized string (around one megabyte) is enough; no authentication is required.\n\nThis is reachable from the public entry points Version.parse/1, Version.parse!/1, Version.match?/3, Version.compare/2, and Version.parse_requirement/1, which applications routinely call on untrusted input such as HTTP parameters, dependency-manifest fields, and package metadata.\n\nThis vulnerability is associated with program files lib/version.ex and program routines \u0027Elixir.Version.Parser\u0027:parse_digits/2.\n\nThis issue affects Elixir: from 1.5.0 before 1.20.1."
    }
  ],
  "id": "CVE-2026-49762",
  "lastModified": "2026-06-09T14:47:47.457",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "LOCAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.1,
          "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": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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": "LOW",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-06-09T14:16:44.317",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://cna.erlef.org/cves/CVE-2026-49762.html"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/elixir-lang/elixir/commit/c64417d72fd5c7d09e963ca3ac5fa2b140978d9e"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/elixir-lang/elixir/security/advisories/GHSA-w2h8-8x3g-278p"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-49762"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}

CVE-2026-49762 (GCVE-0-2026-49762)

Vulnerability from cvelistv5 – Published: 2026-06-09 14:04 – Updated: 2026-06-10 04:43

Title

Unbounded integer parsing in the Version module enables CPU and memory exhaustion denial of service

Summary

Severity

5.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

EEF

References

4 references

URL	Tags
https://github.com/elixir-lang/elixir/security/ad…	vendor-advisoryrelated
https://cna.erlef.org/cves/CVE-2026-49762.html	related
https://osv.dev/vulnerability/EEF-CVE-2026-49762	related
https://github.com/elixir-lang/elixir/commit/c644…	patch

Impacted products

2 products

Vendor	Product	Version
elixir-lang	elixir	Affected: 1.5.0 , < 1.20.1 (semver) cpe:2.3:a:elixir-lang:elixir::::::::
elixir-lang	elixir	Affected: 63e186aea94395897dc4964d82d250130c01ec25 , < c64417d72fd5c7d09e963ca3ac5fa2b140978d9e (git) cpe:2.3:a:elixir-lang:elixir::::::::

Credits

Peter Ullrich José Valim Eric Meadows-Jönsson Jonatan Männchen

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-49762",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-09T14:48:56.343391Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-09T14:49:07.338Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:elixir-lang:elixir:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "\u0027Elixir.Version\u0027",
            "\u0027Elixir.Version.Parser\u0027"
          ],
          "packageName": "elixir-lang/elixir",
          "packageURL": "pkg:otp/elixir?repository_url=https:%2F%2Fgithub.com%2Felixir-lang%2Felixir\u0026vcs_url=git%20https:%2F%2Fgithub.com%2Felixir-lang%2Felixir.git",
          "product": "elixir",
          "programFiles": [
            "lib/version.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Version\u0027:parse/1"
            },
            {
              "name": "\u0027Elixir.Version\u0027:parse!/1"
            },
            {
              "name": "\u0027Elixir.Version\u0027:match?/3"
            },
            {
              "name": "\u0027Elixir.Version\u0027:compare/2"
            },
            {
              "name": "\u0027Elixir.Version\u0027:parse_requirement/1"
            },
            {
              "name": "\u0027Elixir.Version.Parser\u0027:parse_version/2"
            },
            {
              "name": "\u0027Elixir.Version.Parser\u0027:parse_digits/2"
            },
            {
              "name": "\u0027Elixir.Version.Parser\u0027:require_digits/1"
            },
            {
              "name": "\u0027Elixir.Version.Parser\u0027:convert_parts_to_integer/2"
            }
          ],
          "repo": "https://github.com/elixir-lang/elixir",
          "vendor": "elixir-lang",
          "versions": [
            {
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              "version": "1.5.0",
              "versionType": "semver"
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          ]
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        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:elixir-lang:elixir:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
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            "\u0027Elixir.Version.Parser\u0027"
          ],
          "packageName": "elixir-lang/elixir",
          "packageURL": "pkg:github/elixir-lang/elixir",
          "product": "elixir",
          "programFiles": [
            "lib/elixir/lib/version.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Version\u0027:parse/1"
            },
            {
              "name": "\u0027Elixir.Version\u0027:parse!/1"
            },
            {
              "name": "\u0027Elixir.Version\u0027:match?/3"
            },
            {
              "name": "\u0027Elixir.Version\u0027:compare/2"
            },
            {
              "name": "\u0027Elixir.Version\u0027:parse_requirement/1"
            },
            {
              "name": "\u0027Elixir.Version.Parser\u0027:parse_version/2"
            },
            {
              "name": "\u0027Elixir.Version.Parser\u0027:parse_digits/2"
            },
            {
              "name": "\u0027Elixir.Version.Parser\u0027:require_digits/1"
            },
            {
              "name": "\u0027Elixir.Version.Parser\u0027:convert_parts_to_integer/2"
            }
          ],
          "repo": "https://github.com/elixir-lang/elixir.git",
          "vendor": "elixir-lang",
          "versions": [
            {
              "lessThan": "c64417d72fd5c7d09e963ca3ac5fa2b140978d9e",
              "status": "affected",
              "version": "63e186aea94395897dc4964d82d250130c01ec25",
              "versionType": "git"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:elixir-lang:elixir:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "1.20.1",
                  "versionStartIncluding": "1.5.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "AND"
            }
          ],
          "operator": "AND"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Peter Ullrich"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Jos\u00e9 Valim"
        },
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          "lang": "en",
          "type": "remediation reviewer",
          "value": "Eric Meadows-J\u00f6nsson"
        },
        {
          "lang": "en",
          "type": "analyst",
          "value": "Jonatan M\u00e4nnchen"
        }
      ],
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
            {
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              "type": "text/html",
              "value": "\u003cp\u003eUncontrolled Resource Consumption vulnerability in the Elixir standard library\u0027s \u003ctt\u003eVersion\u003c/tt\u003e module allows an attacker who controls a version string to cause a denial of service through CPU and memory exhaustion.\u003c/p\u003e\u003cp\u003eThe version parser converts numeric version components (major, minor, patch and numeric pre-release/build identifiers) to integers without bounding their length. A single large all-digit component therefore forces a super-linear, non-yielding base-10 to arbitrary-precision integer conversion (\u003ctt\u003eString.to_integer/1\u003c/tt\u003e, i.e. \u003ctt\u003e:erlang.binary_to_integer/1\u003c/tt\u003e) that pins a BEAM scheduler, and a larger component raises an uncaught \u003ctt\u003eSystemLimitError\u003c/tt\u003e that crashes the calling process. A single moderately sized string (around one megabyte) is enough; no authentication is required.\u003c/p\u003e\u003cp\u003eThis is reachable from the public entry points \u003ctt\u003eVersion.parse/1\u003c/tt\u003e, \u003ctt\u003eVersion.parse!/1\u003c/tt\u003e, \u003ctt\u003eVersion.match?/3\u003c/tt\u003e, \u003ctt\u003eVersion.compare/2\u003c/tt\u003e, and \u003ctt\u003eVersion.parse_requirement/1\u003c/tt\u003e, which applications routinely call on untrusted input such as HTTP parameters, dependency-manifest fields, and package metadata.\u003c/p\u003e\u003cp\u003eThis vulnerability is associated with program files \u003ctt\u003elib/version.ex\u003c/tt\u003e and program routines \u003ctt\u003e\u0027Elixir.Version.Parser\u0027:parse_digits/2\u003c/tt\u003e.\u003c/p\u003e\u003cp\u003eThis issue affects Elixir: from 1.5.0 before 1.20.1.\u003c/p\u003e"
            }
          ],
          "value": "Uncontrolled Resource Consumption vulnerability in the Elixir standard library\u0027s Version module allows an attacker who controls a version string to cause a denial of service through CPU and memory exhaustion.\n\nThe version parser converts numeric version components (major, minor, patch and numeric pre-release/build identifiers) to integers without bounding their length. A single large all-digit component therefore forces a super-linear, non-yielding base-10 to arbitrary-precision integer conversion (String.to_integer/1, i.e. :erlang.binary_to_integer/1) that pins a BEAM scheduler, and a larger component raises an uncaught SystemLimitError that crashes the calling process. A single moderately sized string (around one megabyte) is enough; no authentication is required.\n\nThis is reachable from the public entry points Version.parse/1, Version.parse!/1, Version.match?/3, Version.compare/2, and Version.parse_requirement/1, which applications routinely call on untrusted input such as HTTP parameters, dependency-manifest fields, and package metadata.\n\nThis vulnerability is associated with program files lib/version.ex and program routines \u0027Elixir.Version.Parser\u0027:parse_digits/2.\n\nThis issue affects Elixir: from 1.5.0 before 1.20.1."
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            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
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            "vulnIntegrityImpact": "NONE"
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          "scenarios": [
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              "value": "GENERAL"
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              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
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        "shortName": "EEF"
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        },
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          "tags": [
            "related"
          ],
          "url": "https://cna.erlef.org/cves/CVE-2026-49762.html"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://osv.dev/vulnerability/EEF-CVE-2026-49762"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/elixir-lang/elixir/commit/c64417d72fd5c7d09e963ca3ac5fa2b140978d9e"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Unbounded integer parsing in the Version module enables CPU and memory exhaustion denial of service",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
    "assignerShortName": "EEF",
    "cveId": "CVE-2026-49762",
    "datePublished": "2026-06-09T14:04:07.405Z",
    "dateReserved": "2026-06-01T13:45:22.449Z",
    "dateUpdated": "2026-06-10T04:43:08.517Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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-2026-49762

CVE-2026-49762 (GCVE-0-2026-49762)

Tags

Sightings

Nomenclature