Vulnerability-Lookup

FKIE_CVE-2026-46625

Vulnerability from fkie_nvd - Published: 2026-06-10 22:16 - Updated: 2026-07-23 09:10

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Summary

JavaScript Cookie is a JavaScript API for handling cookies, client-side. Prior to version 3.0.7, js-cookie's internal assign() helper copies properties with for...in + plain assignment. When the source object is produced by JSON.parse, the JSON object's "__proto__" member is an own enumerable property, so the for…in enumerates it and the target[key] = source[key] write triggers the Object.prototype.__proto__ setter on the fresh target ({}). The result is a per-instance prototype hijack: Object.prototype itself is untouched, but the merged attributes object now inherits attacker-controlled keys. Because the consuming set() function then enumerates the merged object with another for...in, every key the attacker placed on the polluted prototype lands in the resulting Set-Cookie string as an attribute pair. The attacker can set domain=, secure=, samesite=, expires=, and path= on cookies whose attributes the developer thought were locked down. This issue has been patched in version 3.0.7.

References

	URL	Tags
	security-advisories@github.com	https://github.com/js-cookie/js-cookie/commit/eb3c40e89731e99b8970faaf35ddad249c6c0020
	security-advisories@github.com	https://github.com/js-cookie/js-cookie/releases/tag/v3.0.7
	security-advisories@github.com	https://github.com/js-cookie/js-cookie/security/advisories/GHSA-qjx8-664m-686j
	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:33183
	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/errata/RHSA-2026:36625
	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-46625
	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2487740
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/js-cookie/js-cookie/security/advisories/GHSA-qjx8-664m-686j
	0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46625.json

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "js-cookie",
          "vendor": "js-cookie",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.0.7"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
      "affectedData": [
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:advanced_cluster_security:4.10::el8"
          ],
          "defaultStatus": "affected",
          "packageName": "advanced-cluster-security/rhacs-main-rhel8",
          "product": "Red Hat Advanced Cluster Security for Kubernetes 4.10",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1783357140",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:service_mesh:3.3::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "openshift-service-mesh/kiali-ossmc-rhel9",
          "product": "Red Hat OpenShift Service Mesh 3.3",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1782231869",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://catalog.redhat.com/software/containers/",
          "cpes": [
            "cpe:/a:redhat:service_mesh:3.3::el9"
          ],
          "defaultStatus": "affected",
          "packageName": "openshift-service-mesh/kiali-rhel9",
          "product": "Red Hat OpenShift Service Mesh 3.3",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "1782201466",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:cryostat:4"
          ],
          "defaultStatus": "affected",
          "packageName": "grafana-infinity-datasource-npm",
          "product": "Cryostat 4",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_lightspeed"
          ],
          "defaultStatus": "affected",
          "packageName": "openshift-lightspeed/lightspeed-console-plugin-419-rhel9",
          "product": "OpenShift Lightspeed",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_lightspeed"
          ],
          "defaultStatus": "affected",
          "packageName": "openshift-lightspeed/lightspeed-console-plugin-rhel9",
          "product": "OpenShift Lightspeed",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_3scale_amp:2"
          ],
          "defaultStatus": "unaffected",
          "packageName": "3scale-amp21/system",
          "product": "Red Hat 3scale API Management Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_3scale_amp:2"
          ],
          "defaultStatus": "unaffected",
          "packageName": "3scale-amp22/system",
          "product": "Red Hat 3scale API Management Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_3scale_amp:2"
          ],
          "defaultStatus": "unaffected",
          "packageName": "3scale-amp2/system-rhel7",
          "product": "Red Hat 3scale API Management Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_3scale_amp:2"
          ],
          "defaultStatus": "unaffected",
          "packageName": "3scale-amp2/system-rhel8",
          "product": "Red Hat 3scale API Management Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:red_hat_3scale_amp:2"
          ],
          "defaultStatus": "affected",
          "packageName": "3scale-amp2/system-rhel9",
          "product": "Red Hat 3scale API Management Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2"
          ],
          "defaultStatus": "unknown",
          "packageName": "ansible-automation-platform-26/gateway-rhel9",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2"
          ],
          "defaultStatus": "unknown",
          "packageName": "ansible-automation-platform-27/gateway-rhel9",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2"
          ],
          "defaultStatus": "unknown",
          "packageName": "automation-gateway",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2"
          ],
          "defaultStatus": "unknown",
          "packageName": "automation-hub",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2"
          ],
          "defaultStatus": "unknown",
          "packageName": "automation-platform-ui",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2"
          ],
          "defaultStatus": "unknown",
          "packageName": "python3.11-galaxy-ng",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2"
          ],
          "defaultStatus": "unknown",
          "packageName": "python3.12-galaxy-ng",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2"
          ],
          "defaultStatus": "unknown",
          "packageName": "python3x-galaxy-ng",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:ansible_automation_platform:2"
          ],
          "defaultStatus": "unknown",
          "packageName": "python-galaxy-ng",
          "product": "Red Hat Ansible Automation Platform 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhdh:1"
          ],
          "defaultStatus": "affected",
          "packageName": "rhdh/rhdh-hub-rhel9",
          "product": "Red Hat Developer Hub",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:discovery:2::el9"
          ],
          "defaultStatus": "unknown",
          "packageName": "discovery/discovery-ui-rhel9",
          "product": "Red Hat Discovery 2",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10"
          ],
          "defaultStatus": "unknown",
          "packageName": "grafana-pcp",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8"
          ],
          "defaultStatus": "unknown",
          "packageName": "grafana",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8"
          ],
          "defaultStatus": "unknown",
          "packageName": "grafana-pcp",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:9"
          ],
          "defaultStatus": "unknown",
          "packageName": "grafana-pcp",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:7"
          ],
          "defaultStatus": "affected",
          "packageName": "js-cookie",
          "product": "Red Hat JBoss Enterprise Application Platform 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "js-cookie",
          "product": "Red Hat JBoss Enterprise Application Platform 8",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:jbosseapxp"
          ],
          "defaultStatus": "unaffected",
          "packageName": "js-cookie",
          "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-dashboard-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-mod-arch-automl-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-mod-arch-autorag-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-mod-arch-eval-hub-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-mod-arch-gen-ai-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-mod-arch-maas-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-mod-arch-mlflow-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-mod-arch-model-registry-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift:4"
          ],
          "defaultStatus": "unknown",
          "packageName": "openshift4/ose-agent-installer-ui-rhel9",
          "product": "Red Hat OpenShift Container Platform 4",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:ansible_portal:2"
          ],
          "defaultStatus": "unknown",
          "packageName": "ansible-automation-platform/automation-portal",
          "product": "Self-service automation portal 2",
          "vendor": "Red Hat"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "JavaScript Cookie is a JavaScript API for handling cookies, client-side. Prior to version 3.0.7, js-cookie\u0027s internal assign() helper copies properties with for...in + plain assignment. When the source object is produced by JSON.parse, the JSON object\u0027s \"__proto__\" member is an own enumerable property, so the for\u2026in enumerates it and the target[key] = source[key] write triggers the Object.prototype.__proto__ setter on the fresh target ({}). The result is a per-instance prototype hijack: Object.prototype itself is untouched, but the merged attributes object now inherits attacker-controlled keys. Because the consuming set() function then enumerates the merged object with another for...in, every key the attacker placed on the polluted prototype lands in the resulting Set-Cookie string as an attribute pair. The attacker can set domain=, secure=, samesite=, expires=, and path= on cookies whose attributes the developer thought were locked down. This issue has been patched in version 3.0.7."
    },
    {
      "lang": "es",
      "value": "JavaScript Cookie es una API de JavaScript para manejar cookies, del lado del cliente. Antes de la versi\u00f3n 3.0.7, la funci\u00f3n auxiliar interna assign() de js-cookie copia propiedades con for...in + asignaci\u00f3n simple. Cuando el objeto fuente es producido por JSON.parse, el miembro __proto__ del objeto JSON es una propiedad enumerable propia, por lo que el for...in lo enumera y la escritura target[key] = source[key] activa el setter Object.prototype.__proto__ en el nuevo objetivo ({}). El resultado es un secuestro de prototipo por instancia: Object.prototype en s\u00ed no se modifica, pero el objeto de atributos fusionados ahora hereda claves controladas por el atacante. Debido a que la funci\u00f3n set() consumidora luego enumera el objeto fusionado con otro for...in, cada clave que el atacante coloc\u00f3 en el prototipo contaminado termina en la cadena Set-Cookie resultante como un par de atributos. El atacante puede establecer domain=, secure=, samesite=, expires=, y path= en cookies cuyos atributos el desarrollador pens\u00f3 que estaban bloqueados. Este problema ha sido parcheado en la versi\u00f3n 3.0.7."
    }
  ],
  "id": "CVE-2026-46625",
  "lastModified": "2026-07-23T09:10:00.113",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-46625",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-11T14:46:15.083511Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-10T22:16:59.613",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/js-cookie/js-cookie/commit/eb3c40e89731e99b8970faaf35ddad249c6c0020"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/js-cookie/js-cookie/releases/tag/v3.0.7"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/js-cookie/js-cookie/security/advisories/GHSA-qjx8-664m-686j"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:33183"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/errata/RHSA-2026:36625"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46625"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487740"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/js-cookie/js-cookie/security/advisories/GHSA-qjx8-664m-686j"
    },
    {
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46625.json"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
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}

CVE-2026-46625 (GCVE-0-2026-46625)

Vulnerability from cvelistv5 – Published: 2026-06-10 21:18 – Updated: 2026-07-15 00:50

Title

JavaScript Cookie: Per-instance prototype hijack in assign() enables cookie-attribute injection

Summary

Severity

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes

Assigner

GitHub_M

References

8 references

URL	Tags
https://github.com/js-cookie/js-cookie/security/a…	x_refsource_CONFIRM
https://github.com/js-cookie/js-cookie/commit/eb3…	x_refsource_MISC
https://github.com/js-cookie/js-cookie/releases/t…	x_refsource_MISC
https://access.redhat.com/security/cve/CVE-2026-46625	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2487740	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:36625	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33183	vendor-advisoryx_refsource_REDHAT

Impacted products

19 products

Vendor	Product	Version
js-cookie	js-cookie	Affected: < 3.0.7
Red Hat	Red Hat Advanced Cluster Security for Kubernetes 4.10	Unaffected: 1783357140 , < * (rpm) cpe:/a:redhat:advanced_cluster_security:4.10::el8
Red Hat	Red Hat OpenShift Service Mesh 3.3	Unaffected: 1782231869 , < * (rpm) cpe:/a:redhat:service_mesh:3.3::el9
Red Hat	Red Hat OpenShift Service Mesh 3.3	Unaffected: 1782201466 , < * (rpm) cpe:/a:redhat:service_mesh:3.3::el9
Red Hat	Cryostat 4	cpe:/a:redhat:cryostat:4
Red Hat	OpenShift Lightspeed	cpe:/a:redhat:openshift_lightspeed
Red Hat	Red Hat 3scale API Management Platform 2	cpe:/a:redhat:red_hat_3scale_amp:2
Red Hat	Red Hat Ansible Automation Platform 2	cpe:/a:redhat:ansible_automation_platform:2
Red Hat	Red Hat Developer Hub	cpe:/a:redhat:rhdh:1
Red Hat	Red Hat Discovery 2	cpe:/a:redhat:discovery:2::el9
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat JBoss Enterprise Application Platform 7	cpe:/a:redhat:jboss_enterprise_application_platform:7
Red Hat	Red Hat JBoss Enterprise Application Platform 8	cpe:/a:redhat:jboss_enterprise_application_platform:8
Red Hat	Red Hat JBoss Enterprise Application Platform Expansion Pack	cpe:/a:redhat:jbosseapxp
Red Hat	Red Hat OpenShift AI (RHOAI)	cpe:/a:redhat:openshift_ai
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4
Red Hat	Self-service automation portal 2	cpe:/a:redhat:ansible_portal:2

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          "value": "JavaScript Cookie is a JavaScript API for handling cookies, client-side. Prior to version 3.0.7, js-cookie\u0027s internal assign() helper copies properties with for...in + plain assignment. When the source object is produced by JSON.parse, the JSON object\u0027s \"__proto__\" member is an own enumerable property, so the for\u2026in enumerates it and the target[key] = source[key] write triggers the Object.prototype.__proto__ setter on the fresh target ({}). The result is a per-instance prototype hijack: Object.prototype itself is untouched, but the merged attributes object now inherits attacker-controlled keys. Because the consuming set() function then enumerates the merged object with another for...in, every key the attacker placed on the polluted prototype lands in the resulting Set-Cookie string as an attribute pair. The attacker can set domain=, secure=, samesite=, expires=, and path= on cookies whose attributes the developer thought were locked down. This issue has been patched in version 3.0.7."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1321",
              "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-10T21:18:05.372Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/js-cookie/js-cookie/security/advisories/GHSA-qjx8-664m-686j",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/js-cookie/js-cookie/security/advisories/GHSA-qjx8-664m-686j"
        },
        {
          "name": "https://github.com/js-cookie/js-cookie/commit/eb3c40e89731e99b8970faaf35ddad249c6c0020",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/js-cookie/js-cookie/commit/eb3c40e89731e99b8970faaf35ddad249c6c0020"
        },
        {
          "name": "https://github.com/js-cookie/js-cookie/releases/tag/v3.0.7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/js-cookie/js-cookie/releases/tag/v3.0.7"
        }
      ],
      "source": {
        "advisory": "GHSA-qjx8-664m-686j",
        "discovery": "UNKNOWN"
      },
      "title": "JavaScript Cookie: Per-instance prototype hijack in assign() enables cookie-attribute injection"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-46625",
    "datePublished": "2026-06-10T21:18:05.372Z",
    "dateReserved": "2026-05-15T19:34:14.013Z",
    "dateUpdated": "2026-07-15T00:50:05.754Z",
    "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.

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.

Action not permitted

FKIE_CVE-2026-46625

CVE-2026-46625 (GCVE-0-2026-46625)

Tags

Sightings

Nomenclature