Vulnerability-Lookup

CVE-2026-65627 (GCVE-0-2026-65627)

Vulnerability from cvelistv5 – Published: 2026-10-26 19:53 – Updated: 2026-10-26 19:53

Title

Decompression bomb via unbounded zlib:inflate in jose_jwe_zip:uncompress/2

Summary

Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in potatosalad jose (erlang-jose) allows a remote attacker to exhaust a node's memory with a small crafted JWE token. The jose_jwe_zip:uncompress/2 function in src/jwe/jose_jwe_zip.erl decompresses the DEFLATE-compressed plaintext of a JWE that carries the optional zip: DEF header by calling zlib:inflate/2 on the entire attacker-controlled stream, with no bound on the output size or the inflation ratio. Raw DEFLATE reaches ratios around 1000:1 on highly repetitive input, so a few-kilobyte token inflates to hundreds of megabytes or gigabytes in a single call. Decompression runs automatically during decryption through jose_jwe:block_decrypt/2 (JOSE.JWE.block_decrypt/2 in Elixir), before the recipient can inspect or reject the payload. With the common asymmetric key-management algorithms (RSA-OAEP, ECDH-ES) an attacker needs only the recipient's public key to craft such a token, so no authentication or secret material is required. A single small token can exhaust the node's memory and crash the BEAM, denying service to all users. This issue affects jose: from 1.0.0 before 1.11.13.

Severity

6.9 (Medium)


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

CWE

CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)

Assigner

EEF CNA under the mitre root

CNA scorecard A 97/100 over 347 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/potatosalad/erlang-jose/securi…	vendor-advisoryrelated
https://cna.erlef.org/cves/CVE-2026-65627.html	related
https://osv.dev/vulnerability/EEF-CVE-2026-65627	related
https://github.com/potatosalad/erlang-jose/commit…	related
https://github.com/potatosalad/erlang-jose/commit…	patch

Impacted products

2 products

Vendor	Product	Version	CPE status
potatosalad	jose	Affected: 1.0.0 , < 1.11.13 (semver) cpe:2.3:a:potatosalad:jose::::::::
potatosalad	jose	Affected: a7746ecd4950f85a393136e449a91dac62b5c429 , < 857eb8e7f2d33e2c9ca2189e77226561cacaf2ad (git) cpe:2.3:a:potatosalad:jose::::::::

Credits

Peter Ullrich Andrew Bennett Jonatan Männchen / EEF

Show details on NVD website

JSON

To clipboard

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            "value": "Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in potatosalad jose (erlang-jose) allows a remote attacker to exhaust a node\u0027s memory with a small crafted JWE token.\n\nThe jose_jwe_zip:uncompress/2 function in src/jwe/jose_jwe_zip.erl decompresses the DEFLATE-compressed plaintext of a JWE that carries the optional zip: DEF header by calling zlib:inflate/2 on the entire attacker-controlled stream, with no bound on the output size or the inflation ratio. Raw DEFLATE reaches ratios around 1000:1 on highly repetitive input, so a few-kilobyte token inflates to hundreds of megabytes or gigabytes in a single call.\n\nDecompression runs automatically during decryption through jose_jwe:block_decrypt/2 (JOSE.JWE.block_decrypt/2 in Elixir), before the recipient can inspect or reject the payload. With the common asymmetric key-management algorithms (RSA-OAEP, ECDH-ES) an attacker needs only the recipient\u0027s public key to craft such a token, so no authentication or secret material is required. A single small token can exhaust the node\u0027s memory and crash the BEAM, denying service to all users.\n\nThis issue affects jose: from 1.0.0 before 1.11.13."
          }
        ],
        "id": "CVE-2026-65627",
        "lastModified": "2026-10-27T15:00:49.240",
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                "privilegesRequired": "NONE",
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        "published": "2026-10-26T20:17:58.290",
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        "vulnStatus": "Deferred",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "jose: jose: Denial of Service via unbounded decompression of crafted JWE tokens",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-65627.json",
      "version": "3"
    }
  }
}

FKIE_CVE-2026-65627

Vulnerability from fkie_nvd - Published: 2026-10-26 20:17 - Updated: 2026-10-27 15:00

Severity

6.9 (Medium) - CVSS:4.0/AV:L/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-2026-65627.html
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/potatosalad/erlang-jose/commit/857eb8e7f2d33e2c9ca2189e77226561cacaf2ad
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/potatosalad/erlang-jose/commit/a7746ecd4950f85a393136e449a91dac62b5c429
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://github.com/potatosalad/erlang-jose/security/advisories/GHSA-wfpv-qxp8-x5gm
	6b3ad84c-e1a6-4bf7-a703-f496b71e49db	https://osv.dev/vulnerability/EEF-CVE-2026-65627

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:potatosalad:jose:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "jose_jwe_zip",
            "jose_jwe",
            "\u0027Elixir.JOSE.JWE\u0027"
          ],
          "packageName": "jose",
          "packageURL": "pkg:hex/jose",
          "product": "jose",
          "programFiles": [
            "src/jwe/jose_jwe_zip.erl",
            "src/jwe/jose_jwe.erl",
            "lib/jose/jwe.ex"
          ],
          "programRoutines": [
            {
              "name": "jose_jwe_zip:uncompress/2"
            },
            {
              "name": "jose_jwe:block_decrypt/2"
            },
            {
              "name": "\u0027Elixir.JOSE.JWE\u0027:block_decrypt/2"
            }
          ],
          "repo": "https://github.com/potatosalad/erlang-jose",
          "vendor": "potatosalad",
          "versions": [
            {
              "lessThan": "1.11.13",
              "status": "affected",
              "version": "1.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:potatosalad:jose:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "jose_jwe_zip",
            "jose_jwe",
            "\u0027Elixir.JOSE.JWE\u0027"
          ],
          "packageName": "potatosalad/erlang-jose",
          "packageURL": "pkg:github/potatosalad/erlang-jose",
          "product": "jose",
          "programFiles": [
            "src/jwe/jose_jwe_zip.erl",
            "src/jwe/jose_jwe.erl",
            "lib/jose/jwe.ex"
          ],
          "programRoutines": [
            {
              "name": "jose_jwe_zip:uncompress/2"
            },
            {
              "name": "jose_jwe:block_decrypt/2"
            },
            {
              "name": "\u0027Elixir.JOSE.JWE\u0027:block_decrypt/2"
            }
          ],
          "repo": "https://github.com/potatosalad/erlang-jose",
          "vendor": "potatosalad",
          "versions": [
            {
              "lessThan": "857eb8e7f2d33e2c9ca2189e77226561cacaf2ad",
              "status": "affected",
              "version": "a7746ecd4950f85a393136e449a91dac62b5c429",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in potatosalad jose (erlang-jose) allows a remote attacker to exhaust a node\u0027s memory with a small crafted JWE token.\n\nThe jose_jwe_zip:uncompress/2 function in src/jwe/jose_jwe_zip.erl decompresses the DEFLATE-compressed plaintext of a JWE that carries the optional zip: DEF header by calling zlib:inflate/2 on the entire attacker-controlled stream, with no bound on the output size or the inflation ratio. Raw DEFLATE reaches ratios around 1000:1 on highly repetitive input, so a few-kilobyte token inflates to hundreds of megabytes or gigabytes in a single call.\n\nDecompression runs automatically during decryption through jose_jwe:block_decrypt/2 (JOSE.JWE.block_decrypt/2 in Elixir), before the recipient can inspect or reject the payload. With the common asymmetric key-management algorithms (RSA-OAEP, ECDH-ES) an attacker needs only the recipient\u0027s public key to craft such a token, so no authentication or secret material is required. A single small token can exhaust the node\u0027s memory and crash the BEAM, denying service to all users.\n\nThis issue affects jose: from 1.0.0 before 1.11.13."
    }
  ],
  "id": "CVE-2026-65627",
  "lastModified": "2026-10-27T15:00:49.240",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "LOCAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "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: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": "2026-10-26T20:17:58.290",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://cna.erlef.org/cves/CVE-2026-65627.html"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/potatosalad/erlang-jose/commit/857eb8e7f2d33e2c9ca2189e77226561cacaf2ad"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/potatosalad/erlang-jose/commit/a7746ecd4950f85a393136e449a91dac62b5c429"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/potatosalad/erlang-jose/security/advisories/GHSA-wfpv-qxp8-x5gm"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-65627"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-409"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}

RHSA-2026:86200

Vulnerability from csaf_redhat - Published: 2026-10-20 19:53 - Updated: 2026-10-29 22:28

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2026-65627.

CVE-2026-65627

A flaw was found in jose. This vulnerability allows an unauthenticated remote attacker to cause a Denial of Service (DoS) through memory exhaustion. When processing JSON Web Encryption (JWE) tokens that use compression, the library decompresses the payload without enforcing limits on the output size or expansion ratio. An attacker can exploit this issue by sending a small, crafted token, causing the application to consume excessive memory and crash.

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 4 products

https://access.redhat.com/errata/RHSA-2026:86200

Open the full advisory

RHSA-2026:88537

Vulnerability from csaf_redhat - Published: 2026-10-23 02:44 - Updated: 2026-10-30 06:54

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Severity

Important

Scope

5 vulnerabilities in this advisory, including CVE-2026-65627.

CVE-2026-65627

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 4 products

https://access.redhat.com/errata/RHSA-2026:88537

Open the full advisory

RHSA-2026:88541

Vulnerability from csaf_redhat - Published: 2026-10-23 02:59 - Updated: 2026-10-30 06:54

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Severity

Important

Scope

6 vulnerabilities in this advisory, including CVE-2026-65627.

CVE-2026-65627

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 4 products

https://access.redhat.com/errata/RHSA-2026:88541

Open the full advisory

RHSA-2026:90388

Vulnerability from csaf_redhat - Published: 2026-10-26 17:44 - Updated: 2026-10-30 13:56

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Severity

Important

Scope

10 vulnerabilities in this advisory, including CVE-2026-65627.

CVE-2026-65627

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 3 products

https://access.redhat.com/errata/RHSA-2026:90388

Open the full advisory

RHSA-2026:91476

Vulnerability from csaf_redhat - Published: 2026-10-27 22:55 - Updated: 2026-10-29 22:09

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2026-65627.

CVE-2026-65627

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 4 products

https://access.redhat.com/errata/RHSA-2026:91476

Open the full advisory

UBUNTU-CVE-2026-65627 (CVE-2026-65627)

Vulnerability from osv_ubuntu – Published: 2026-10-26 20:17 – Updated: 2026-10-28 17:39 – Source website

Details

Severity

6.9 (Medium)


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

6.9 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-65627	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-65627	REPORT
	https://cna.erlef.org/cves/cve-2026-65627.html	REPORT
	https://github.com	REPORT
	https://github.com/potatosalad/erlang-jose	REPORT
	https://github.com/potatosalad/erlang-jose/commit…	REPORT
	https://github.com/potatosalad/erlang-jose/commit…	REPORT
	https://github.com/potatosalad/erlang-jose/securi…	REPORT
	https://hex.pm/packages/jose	REPORT
	https://repo.hex.pm	REPORT
	https://github.com/cveproject/cvelistv5/tree/main…	REPORT
	https://nvd.nist.gov/vuln/detail/cve-2026-65627	REPORT
	https://osv.dev/vulnerability/eef-cve-2026-65627	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "jose",
            "binary_version": "10-2build1"
          },
          {
            "binary_name": "libjose0",
            "binary_version": "10-2build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "jose",
        "purl": "pkg:deb/ubuntu/jose@10-2build1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10-2",
        "10-2build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "jose",
            "binary_version": "10-2build2"
          },
          {
            "binary_name": "libjose0",
            "binary_version": "10-2build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "jose",
        "purl": "pkg:deb/ubuntu/jose@10-2build2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10-2build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "jose",
            "binary_version": "11-2"
          },
          {
            "binary_name": "libjose0",
            "binary_version": "11-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "jose",
        "purl": "pkg:deb/ubuntu/jose@11-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10-3",
        "11-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "jose",
            "binary_version": "13-1"
          },
          {
            "binary_name": "libjose0",
            "binary_version": "13-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "jose",
        "purl": "pkg:deb/ubuntu/jose@13-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "11-2",
        "11-3",
        "11-3build1",
        "11-3build2",
        "13-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "jose",
            "binary_version": "14-2build2"
          },
          {
            "binary_name": "libjose0",
            "binary_version": "14-2build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "jose",
        "purl": "pkg:deb/ubuntu/jose@14-2build2?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "14-2build1",
        "14-2build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "jose",
            "binary_version": "14-2build1"
          },
          {
            "binary_name": "libjose0",
            "binary_version": "14-2build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "jose",
        "purl": "pkg:deb/ubuntu/jose@14-2build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "14-2build1"
      ]
    }
  ],
  "aliases": [],
  "details": "Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in potatosalad jose (erlang-jose) allows a remote attacker to exhaust a node\u0027s memory with a small crafted JWE token. The jose_jwe_zip:uncompress/2 function in src/jwe/jose_jwe_zip.erl decompresses the DEFLATE-compressed plaintext of a JWE that carries the optional zip: DEF header by calling zlib:inflate/2 on the entire attacker-controlled stream, with no bound on the output size or the inflation ratio. Raw DEFLATE reaches ratios around 1000:1 on highly repetitive input, so a few-kilobyte token inflates to hundreds of megabytes or gigabytes in a single call. Decompression runs automatically during decryption through jose_jwe:block_decrypt/2 (JOSE.JWE.block_decrypt/2 in Elixir), before the recipient can inspect or reject the payload. With the common asymmetric key-management algorithms (RSA-OAEP, ECDH-ES) an attacker needs only the recipient\u0027s public key to craft such a token, so no authentication or secret material is required. A single small token can exhaust the node\u0027s memory and crash the BEAM, denying service to all users. This issue affects jose: from 1.0.0 before 1.11.13.",
  "id": "UBUNTU-CVE-2026-65627",
  "modified": "2026-10-28T17:39:54Z",
  "published": "2026-10-26T20:17:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-65627"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-65627"
    },
    {
      "type": "REPORT",
      "url": "https://cna.erlef.org/cves/cve-2026-65627.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/potatosalad/erlang-jose"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/potatosalad/erlang-jose/commit/857eb8e7f2d33e2c9ca2189e77226561cacaf2ad"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/potatosalad/erlang-jose/commit/a7746ecd4950f85a393136e449a91dac62b5c429"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/potatosalad/erlang-jose/security/advisories/ghsa-wfpv-qxp8-x5gm"
    },
    {
      "type": "REPORT",
      "url": "https://hex.pm/packages/jose"
    },
    {
      "type": "REPORT",
      "url": "https://repo.hex.pm"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/cveproject/cvelistv5/tree/main/cves/2026/65xxx/cve-2026-65627.json"
    },
    {
      "type": "REPORT",
      "url": "https://nvd.nist.gov/vuln/detail/cve-2026-65627"
    },
    {
      "type": "REPORT",
      "url": "https://osv.dev/vulnerability/eef-cve-2026-65627"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-65627"
  ]
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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.

Action not permitted

CVE-2026-65627 (GCVE-0-2026-65627)

FKIE_CVE-2026-65627

RHSA-2026:86200

RHSA-2026:88537

RHSA-2026:88541

RHSA-2026:90388

RHSA-2026:91476

UBUNTU-CVE-2026-65627 (CVE-2026-65627)

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Vulnerability timeline

Related by attack behaviour