Vulnerability-Lookup

CVE-2026-53573 (GCVE-0-2026-53573)

Vulnerability from cvelistv5 – Published: 2026-07-31 22:16 – Updated: 2026-08-03 16:26

Title

core-geonetwork has an Open Redirect Bypass

Summary

GeoNetwork is a catalog application to manage spatially referenced resources. From 3.12.0 until 4.2.16 and 4.4.11, unsafe redirect validation in GeonetworkOAuth2LoginAuthenticationFilter and KeycloakAuthenticationProcessingFilter permits an attacker-controlled external redirect after login. This issue is fixed in versions 4.2.16 and 4.4.11.

Severity

4.8 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-03 16:19 UTC

CWE

CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Assigner

GitHub_M mitre root

References

7 references

URL	Tags
https://github.com/geonetwork/core-geonetwork/sec…	x_refsource_CONFIRM
https://github.com/geonetwork/core-geonetwork/pull/9307	x_refsource_MISC
https://github.com/geonetwork/core-geonetwork/pull/9309	x_refsource_MISC
https://github.com/geonetwork/core-geonetwork/com…	x_refsource_MISC
https://github.com/geonetwork/core-geonetwork/com…	x_refsource_MISC
https://github.com/geonetwork/core-geonetwork/rel…	x_refsource_MISC
https://github.com/geonetwork/core-geonetwork/rel…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
geonetwork	core-geonetwork	Affected: >= 3.12.0, <= 3.12.12 Affected: >= 4.0.0-alpha.1, <= 4.0.6 Affected: >= 4.2.0, < 4.2.16 Affected: >= 4.4.0, < 4.4.11	guessed

Show details on NVD website

JSON

To clipboard

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}

FKIE_CVE-2026-53573

Vulnerability from fkie_nvd - Published: 2026-07-31 23:17 - Updated: 2026-09-10 20:30

Severity

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

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/geonetwork/core-geonetwork/commit/0d74f673dfc926bde935819ed34636d789b2fecd
	security-advisories@github.com	https://github.com/geonetwork/core-geonetwork/commit/cde9b6481a29e2473b7b74479b4e3fd6843bac4e
	security-advisories@github.com	https://github.com/geonetwork/core-geonetwork/pull/9307
	security-advisories@github.com	https://github.com/geonetwork/core-geonetwork/pull/9309
	security-advisories@github.com	https://github.com/geonetwork/core-geonetwork/releases/tag/4.2.16
	security-advisories@github.com	https://github.com/geonetwork/core-geonetwork/releases/tag/4.4.11
	security-advisories@github.com	https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-pjp7-q6wp-97qx

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "core-geonetwork",
          "vendor": "geonetwork",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.12.0, \u003c= 3.12.12"
            },
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            },
            {
              "status": "affected",
              "version": "\u003e= 4.2.0, \u003c 4.2.16"
            },
            {
              "status": "affected",
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            }
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        }
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    }
  ],
  "id": "CVE-2026-53573",
  "lastModified": "2026-09-10T20:30:11.423",
  "metrics": {
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          "baseScore": 4.8,
          "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": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "LOW",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/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": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-53573",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-03T16:19:11.004512Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-31T23:17:24.667",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/geonetwork/core-geonetwork/commit/0d74f673dfc926bde935819ed34636d789b2fecd"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/geonetwork/core-geonetwork/commit/cde9b6481a29e2473b7b74479b4e3fd6843bac4e"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/geonetwork/core-geonetwork/pull/9307"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/geonetwork/core-geonetwork/pull/9309"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/geonetwork/core-geonetwork/releases/tag/4.2.16"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/geonetwork/core-geonetwork/releases/tag/4.4.11"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-pjp7-q6wp-97qx"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-PJP7-Q6WP-97QX

Vulnerability from github – Published: 2026-07-31 22:16 – Updated: 2026-07-31 22:16

Summary

core-geonetwork has an Open Redirect Bypass

Details

Summary

GeoNetwork's post-login redirect handling can be bypassed to redirect users to an attacker-controlled external site, even though the code attempts to restrict redirect targets to relative, in-application URLs. This affects both supported SSO login methods: OAuth2/OIDC and Keycloak.

Details

Both the OAuth2/OIDC and Keycloak login filters validate the client-supplied post-login redirect target before forwarding the browser to it, but the validation does not correctly reject every kind of URL that causes the browser to leave the GeoNetwork origin. As a result, a value that is treated as a safe, in-application relative path by the filter can still cause the browser to be redirected to an external, attacker-controlled host.

Impact

An attacker can craft a link to a legitimate GeoNetwork OAuth2/OIDC or Keycloak login endpoint that, after the login flow completes, redirects the victim to an arbitrary external site. This can be used for phishing (e.g., presenting a fake login form) or to chain into other attacks hosted externally. This does not bypass authentication or expose GeoNetwork data directly; the impact is Open Redirect (CWE-601).

GeoNetwork 3.x and 4.0.x are archived/unmaintained and will not receive a fix for this issue. Instances running those lines should upgrade to a supported release (4.2.16 or later, or 4.4.11 or later).

Severity

0.0 (None)


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

4.8 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.geonetwork-opensource:geonetwork"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.12.0"
            },
            {
              "last_affected": "3.12.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.geonetwork-opensource:geonetwork"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0-alpha.1"
            },
            {
              "last_affected": "4.0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.2.15"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.geonetwork-opensource:geonetwork"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2.0"
            },
            {
              "fixed": "4.2.16"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.4.10"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.geonetwork-opensource:geonetwork"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.4.0"
            },
            {
              "fixed": "4.4.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-53573"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-31T22:16:34Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\nGeoNetwork\u0027s post-login redirect handling can be bypassed to redirect users to an attacker-controlled external site, even though the code attempts to restrict redirect targets to relative, in-application URLs. This affects both supported SSO login methods: OAuth2/OIDC and Keycloak.\n\n### Details\nBoth the OAuth2/OIDC and Keycloak login filters validate the client-supplied post-login redirect target before forwarding the browser to it, but the validation does not correctly reject every kind of URL that causes the browser to leave the GeoNetwork origin. As a result, a value that is treated as a safe, in-application relative path by the filter can still cause the browser to be redirected to an external, attacker-controlled host.\n\n### Impact\nAn attacker can craft a link to a legitimate GeoNetwork OAuth2/OIDC or Keycloak login endpoint that, after the login flow completes, redirects the victim to an arbitrary external site. This can be used for phishing (e.g., presenting a fake login form) or to chain into other attacks hosted externally. This does not bypass authentication or expose GeoNetwork data directly; the impact is Open Redirect (CWE-601).\n\nGeoNetwork 3.x and 4.0.x are archived/unmaintained and will not receive a fix for this issue. Instances running those lines should upgrade to a supported release (4.2.16 or later, or 4.4.11 or later).",
  "id": "GHSA-pjp7-q6wp-97qx",
  "modified": "2026-07-31T22:16:34Z",
  "published": "2026-07-31T22:16:34Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/geonetwork/core-geonetwork/security/advisories/GHSA-pjp7-q6wp-97qx"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geonetwork/core-geonetwork/pull/9307"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geonetwork/core-geonetwork/pull/9309"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geonetwork/core-geonetwork/commit/0d74f673dfc926bde935819ed34636d789b2fecd"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geonetwork/core-geonetwork/commit/cde9b6481a29e2473b7b74479b4e3fd6843bac4e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/geonetwork/core-geonetwork"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geonetwork/core-geonetwork/releases/tag/4.2.16"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geonetwork/core-geonetwork/releases/tag/4.4.11"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "core-geonetwork has an Open Redirect Bypass"
}

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.
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.

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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-2026-53573 (GCVE-0-2026-53573)

FKIE_CVE-2026-53573

GHSA-PJP7-Q6WP-97QX

Summary

Details

Impact

Tags

Sightings

Nomenclature

Related by attack behaviour