What is the official website of CoStar Group ?

The official website of CoStar Group is http://www.costargroup.com.

What is CoStar Group's cybersecurity risk score?

CoStar Group has an AI-generated cybersecurity risk score of 793 out of 1000, indicating a Fair security posture according to Rankiteo's assessment.

How many security incidents has CoStar Group experienced?

According to Rankiteo, CoStar Group currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.

Has CoStar Group been affected by any supply chain cyber incidents ?

According to Rankiteo, CoStar Group has not been affected by any supply chain cyber incidents, and no incident IDs are currently listed for the organization.

Does CoStar Group have SOC 2 Type 1 certification ?

According to Rankiteo, CoStar Group is not certified under SOC 2 Type 1.

Does CoStar Group have SOC 2 Type 2 certification ?

According to Rankiteo, CoStar Group does not hold a SOC 2 Type 2 certification.

Does CoStar Group comply with GDPR ?

According to Rankiteo, CoStar Group is not listed as GDPR compliant.

Does CoStar Group have PCI DSS certification ?

According to Rankiteo, CoStar Group does not currently maintain PCI DSS compliance.

Does CoStar Group comply with HIPAA ?

According to Rankiteo, CoStar Group is not compliant with HIPAA regulations.

Does CoStar Group have ISO 27001 certification ?

According to Rankiteo,CoStar Group is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.

Which industry does CoStar Group operate in ?

CoStar Group operates primarily in the Real Estate industry.

How many employees does CoStar Group have ?

CoStar Group employs approximately 11,942 people worldwide.

Does CoStar Group own any subsidiaries ?

CoStar Group presently has no subsidiaries across any sectors.

How many LinkedIn followers does CoStar Group have ?

CoStar Group's official LinkedIn profile has approximately 272,380 followers.

Does CoStar Group have a Crunchbase profile ?

No, CoStar Group does not have a profile on Crunchbase.

Does CoStar Group have a LinkedIn profile ?

Yes, CoStar Group maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/costar-group.

How many cybersecurity incidents has CoStar Group experienced ?

As of August 12, 2026, Rankiteo reports that CoStar Group has not experienced any cybersecurity incidents.

How many peer or competitor companies does CoStar Group have ?

CoStar Group has an estimated 30,249 peer or competitor companies worldwide.

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CoStar Group

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793

/1000

Fair

818

/1000

Good

CoStar Group Vendor Cyber Rating & Cyber Score

costargroup.com

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CoStar Group (NASDAQ: CSGP) is a global leader in commercial real estate information, analytics, online marketplaces, and 3D digital twin technology. Founded in 1986, CoStar Group is dedicated to digitizing the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives. CoStar Group’s major brands include CoStar, a leading global provider of commercial real estate data, analytics, and news; LoopNet, the most trafficked commercial real estate marketplace; Apartments.com, the leading platform for apartment rentals; Homes.com, the fastest-growing residential real estate marketplace; and Domain, one of Australia’s leading property marketplaces. CoStar Group’s

CoStar Group A.I CyberSecurity Scoring

Scoring History

CoStar Group

CoStar Group CyberSecurity News & History

Past Incidents

Attack Types

Entity

Type

Severity

Impact

Seen

Blog Details

Supply Chain Source

Incident Details

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A.I.

CoStar Group Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Actual

Prediction

Incident Predictions locked

Access Monitoring Plan

A.I Risk Score Likelihood 3 - 6 - 9 months

Actual

Prediction A

Prediction B

Prediction C

Prediction D

A.I. Risk Score Predictions locked

Access Monitoring Plan

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Underwriter Stats for CoStar Group

Incidents vs Real Estate Industry Avg (This Year)

No incidents recorded for CoStar Group in 2026.

Incidents vs All-Companies Average (This Year)

No incidents recorded for CoStar Group in 2026.

Incident Types CoStar Group vs Real Estate Industry Avg (This Year)

No incidents recorded for CoStar Group in 2026.

Incident History - CoStar Group (X = Date, Y = Severity)

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SUBSIDIARY

CoStar Group Subsidiaries

Parent Company

CoStar Group

Real Estate

Website: http://www.costargroup.com

Company Size: 5,001-10,000 employees

No subsidiary data available for this company.

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Founded in 1993, Greystar provides world-class service in the residential rental housing industry. Our innovative vertically integrated business model integrates the management, development and investment disciplines of the rental housing industry on international, regional and local levels. This unique approach and our commitment to hiring the best professionals have resulted in record growth, making us one of the most respected and trusted global real estate companies. Because our vertically integrated business model includes both investment and service-oriented businesses, we’re able to maintain a constant presence in local markets and create value in all phases of the real estate cycle. Our international platform provides economies of scale, financial sophistication, institutional quality reporting and tremendous capital relationships, while our city offices provide local market expertise and execution. Supported by a global team of 28,000+ employees, Greystar’s experienced and cross-functional executive team boasts on average over 23 years of industry experience and provides a diverse perspective throughout the investment process. Over the years, Greystar has learned what’s important to people when it comes to a place to call home. That’s why we continually strive to provide beautiful living environments and innovative services that enhance the living experience. We take great pride in knowing that our homes are inviting places for residents to celebrate life’s important moments. Privacy Policy: https://www.greystar.com/privacy DMCA: https://www.greystar.com/terms-of-use#Copyright%20Infringement%20Policy

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fsresidential.com

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kw.com

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Compass

cb compass.com

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JLL

co.jll

We’re a leading professional services firm that specializes in real estate and investment management. JLL shapes the future of real estate for a better world by using the most advanced technology to create rewarding opportunities, amazing spaces and sustainable real estate solutions for our clients, our people and our communities. We want the most ambitious clients to work with us, and the most ambitious people to work for us. Join us.

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NEWS

CoStar Group CyberSecurity News

Latest updates, reports, and threat intel affecting the global network.

March 25, 2026 12:37 PM

News | Cybersecurity startup lease of Silicon Valley office park signals optimism at a crucial moment

Lease of the Year for the South Bay. Cybersecurity firm Zscaler subleased space from Airbnb at Building 1 of 4301 Great America Parkway. (CoStar).

Read Article

March 04, 2026 08:00 AM

Jim Cramer on CoStar Group: “Another Victim of AI That I Am Very Concerned About”

CoStar Group, Inc. (NASDAQ:CSGP) is one of the S&P 500 stocks that Jim Cramer shared his take on. Cramer highlighted the AI fears around the...

Read Article

March 03, 2026 08:00 AM

News | Colliers expands New York team; Newmark hires three Dallas directors; JLL adds healthcare principal

Corey Horowitz joined Colliers as a senior vice president in its New York office. The firm said Horowitz will focus on office leasing and...

Read Article

February 21, 2026 08:00 AM

Jefferies Turns Bullish on CoStar Group (CSGP), Citing Strong EBITDA Growth Outlook

CoStar Group, Inc. (NASDAQ:CSGP) is included among the 14 Best Real Estate Stocks to Buy According to Hedge Funds. On February 20, Jefferies...

Read Article

February 18, 2026 08:00 AM

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February 17, 2026 08:00 AM

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CVE

Latest

Global CVEs (Not Company-Specific)

CVE-2026-73250

SUMMARY

Notepad++ is a free and open-source source code editor. Prior to 8.9.7, the Notepad++ Windows 11 x64 and ARM64 installer passes the attacker-influenced installation directory `$INSTDIR` from PowerEditor/installer/nppSetup.nsi into a PowerShell `-Command` string used by RegisterMSIX to invoke Add-AppxPackage, allowing PowerShell subexpression syntax such as `$()` in the installation path to execute commands in the installer's security context when the context menu component is selected. This issue is fixed in version 8.9.7.

Published

Date2026-08-11

Updated

Date2026-08-11

RISK INFORMATION (Score: )

cvss4

Base Score: 5.4

Complexity: LOW

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/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

Impact Score

Exploitability

REFERENCES

CVE-2026-73249

SUMMARY

calibre is an e-book manager. Prior to 9.12.0, the calibre Content Server endpoint POST /book-update-annotations/{library_id}/{book_id}/{fmt} in src/calibre/srv/books.py omits needs_db_write=True, causing Router.dispatch() to skip ctx.check_for_write_access() before update_annotations() passes attacker-controlled JSON to db.merge_annotations_for_book(), which allows a readonly user or an anonymous user on an unauthenticated deployment to persist unauthorized book annotation changes. This issue is fixed in version 9.12.0.

Published

Date2026-08-11

Updated

Date2026-08-11

RISK INFORMATION (Score: 7.5)

cvss3

Base Score: 7.5

Complexity: LOW

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

Impact Score

3.6

Exploitability

3.9

REFERENCES

CVE-2026-73248

SUMMARY

calibre is an e-book manager. Prior to 9.12.0, calibre processes attacker-controlled composite_template metadata from a malicious EPUB, OPF, PDF, or similar file through program: and a nested template() call whose formatter does not inherit allow_python_templates=False, allowing a nested python: template to reach compile_python_template and execute arbitrary Python code when the file is opened or imported. This issue is fixed in version 9.12.0.

Published

Date2026-08-11

Updated

Date2026-08-11

RISK INFORMATION (Score: )

cvss4

Base Score: 8.5

Complexity: LOW

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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

Impact Score

Exploitability

REFERENCES

CVE-2026-73247

SUMMARY

Kestra is an open-source, event-driven orchestration platform. Prior to 2.0.0, Kestra's core/src/main/java/io/kestra/core/runners/pebble/functions/HttpFunction.java passes the user-controlled http() uri argument to URI.create() and the server-side HTTP client without restricting private, loopback, or link-local destinations, allowing an unauthenticated attacker to import and execute a flow that accesses internal services or cloud metadata.

Published

Date2026-08-11

Updated

Date2026-08-11

RISK INFORMATION (Score: 8.6)

cvss3

Base Score: 8.6

Complexity: LOW

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

Impact Score

Exploitability

3.9

REFERENCES

https://github.com/kestra-io/kestra/security/advisories/GHSA-r56g-q4p6-m3p6

CVE-2026-73246

SUMMARY

Kestra is an open-source, event-driven orchestration platform. Prior to 2.0.0-rc6, Kestra's worker/src/main/java/io/kestra/worker/endpoint/WorkerEndpoint.java serves GET /worker without authentication and serializes the complete live Task object, which can expose commands, environment variables, HTTP headers, connection details, plaintext credentials, and execution identifiers while the main API on port 8080 remains protected. This issue is fixed in 2.0.0-rc6.

Published

Date2026-08-11

Updated

Date2026-08-11

RISK INFORMATION (Score: 7.5)

cvss3

Base Score: 7.5

Complexity: LOW

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

Impact Score

3.6

Exploitability

3.9

REFERENCES

https://github.com/kestra-io/kestra/security/advisories/GHSA-m65f-q5gj-hg46

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