CVE-2026-53573: CWE-601: URL Redirection to Untrusted Site ('Open Redirect') in geonetwork core-geonetwork
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.
AI Analysis
Technical Summary
CVE-2026-53573 is an open redirect vulnerability (CWE-601) in GeoNetwork core-geonetwork. Versions from 3.12.0 up to but excluding 4.2.16 and 4.4.11 improperly validate redirect URLs in the GeonetworkOAuth2LoginAuthenticationFilter and KeycloakAuthenticationProcessingFilter components. This flaw allows an attacker to craft URLs that redirect users to external, potentially malicious sites after login. The vulnerability has a CVSS 4.0 score of 4.8 (medium severity) and does not require privileges or user interaction beyond login. The issue is resolved in versions 4.2.16 and 4.4.11.
Potential Impact
An attacker can exploit this vulnerability to redirect users to untrusted external websites after login, potentially facilitating phishing or other social engineering attacks. There is no indication of direct code execution or data compromise from this vulnerability alone. The impact is limited to user redirection to attacker-controlled sites.
Mitigation Recommendations
Upgrade GeoNetwork core-geonetwork to version 4.2.16 or 4.4.11 or later, where the unsafe redirect validation issue is fixed. No other mitigations are indicated. Patch status is not explicitly stated but the description confirms the fix in these versions.
CVE-2026-53573: CWE-601: URL Redirection to Untrusted Site ('Open Redirect') in geonetwork core-geonetwork
Description
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.
CVSS v4.0
Score 4.8medium
Affected software
geonetwork
core-geonetwork
pkg:github/geonetwork/core-geonetworkRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-53573 is an open redirect vulnerability (CWE-601) in GeoNetwork core-geonetwork. Versions from 3.12.0 up to but excluding 4.2.16 and 4.4.11 improperly validate redirect URLs in the GeonetworkOAuth2LoginAuthenticationFilter and KeycloakAuthenticationProcessingFilter components. This flaw allows an attacker to craft URLs that redirect users to external, potentially malicious sites after login. The vulnerability has a CVSS 4.0 score of 4.8 (medium severity) and does not require privileges or user interaction beyond login. The issue is resolved in versions 4.2.16 and 4.4.11.
Potential Impact
An attacker can exploit this vulnerability to redirect users to untrusted external websites after login, potentially facilitating phishing or other social engineering attacks. There is no indication of direct code execution or data compromise from this vulnerability alone. The impact is limited to user redirection to attacker-controlled sites.
Mitigation Recommendations
Upgrade GeoNetwork core-geonetwork to version 4.2.16 or 4.4.11 or later, where the unsafe redirect validation issue is fixed. No other mitigations are indicated. Patch status is not explicitly stated but the description confirms the fix in these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-09T19:11:53.483Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a6d22c5bf32cb7a34714843
Added to database: 07/31/2026, 22:33:41 UTC
Last enriched: 08/08/2026, 14:30:15 UTC
Last updated: 09/14/2026, 10:01:31 UTC
Views: 106
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