GeoServer CVE-2025-58360 Added to CISA KEV Due to Active Exploitation
CISA has added CVE-2025-58360, a critical XML External Entity (XXE) vulnerability in OSGeo GeoServer, to its Known Exploited Vulnerabilities (KEV) catalog following evidence of active exploitation. This vulnerability affects the Web Map Service (WMS) GetMap operation, allowing unauthenticated attackers to exploit improperly restricted XML entity references, potentially leading to file disclosure, server-side request forgery (SSRF), and denial-of-service conditions. The flaw impacts multiple 2.25.x and 2.26.x versions of GeoServer, with patches available in later releases such as 2.25.6 and 2.26.2/2.26.3, and has been integrated into public exploit tools and security scanners, increasing the risk of widespread exploitation.
CISA’s inclusion of this vulnerability in the KEV catalog mandates federal agencies to remediate affected systems within a set timeframe, underscoring the urgency for all organizations to prioritize patching or isolating vulnerable GeoServer instances. The vulnerability is particularly concerning due to GeoServer’s role in managing geospatial data for critical infrastructure, government, and enterprise GIS deployments, making exploitation a significant risk for data exposure and internal network compromise. CISA strongly recommends that all organizations, not just federal agencies, address this vulnerability as part of their vulnerability management practices to mitigate the threat of active cyberattacks.

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How this story unfolded
4 events from the most recent confirmed update back to the earliest known activity.
CISA orders federal agencies to remediate by January 1, 2026
Under Binding Operational Directive 22-01, CISA required Federal Civilian Executive Branch agencies to remediate CVE-2025-58360 by January 1, 2026. CISA also urged all organizations to prioritize patching or otherwise mitigate exposed GeoServer systems.
CISA adds GeoServer CVE-2025-58360 to the KEV catalog
On December 11, 2025, CISA added CVE-2025-58360 affecting OSGeo GeoServer to its Known Exploited Vulnerabilities catalog due to evidence of active exploitation. The flaw is an XML External Entity issue that can expose files, enable SSRF, and cause denial-of-service.
Canadian Centre for Cyber Security confirms exploit activity in the wild
The Canadian Centre for Cyber Security confirmed that CVE-2025-58360 was being exploited in the wild. This established the flaw as an actively exploited threat rather than a purely theoretical issue.
GeoServer releases fixes for CVE-2025-58360 in supported versions
OSGeo GeoServer addressed CVE-2025-58360, an XXE flaw in the WMS GetMap operation, in patched releases including 2.25.6, 2.26.2/2.26.3, and later versions such as 2.27.0. The fixes closed a vulnerability that could enable file disclosure, SSRF, and denial-of-service.
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Sources
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GeoServer CVE-2025-58360 added to CISA KEV
thecyberthrone.in
Open sourceCISA Flags Actively Exploited GeoServer XXE Flaw in Updated KEV Catalog
thehackernews.com
Open sourceCISA Warns of OSGeo GeoServer 0-Day Vulnerability Exploited in Attacks
cybersecuritynews.com
Open sourceCISA orders feds to patch actively exploited Geoserver flaw
bleepingcomputer.com
Open sourceU.S. CISA adds an OSGeo GeoServer flaw to its Known Exploited Vulnerabilities catalog
securityaffairs.com
Open sourceCISA Adds One Known Exploited Vulnerability to Catalog
cisa.gov
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