How many CVEs does Ktor.io have?

Ktor.io has 21 published CVE records since 2019, including 1 in the last two years.

How many Ktor.io CVEs are in CISA KEV?

None of Ktor.io's CVEs are currently listed in CISA's Known Exploited Vulnerabilities catalog.

Which Ktor.io products have the most CVEs?

The Ktor.io products with the most published CVEs are Ktor, io.ktor:ktor, io.ktor:ktor-client-core-jvm.

What are the most common weakness types in Ktor.io CVEs?

Ktor.io's CVEs most often map to these CWE weakness types: CWE-444 (Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')), CWE-287 (Improper Authentication), CWE-326 (Inadequate Encryption Strength), CWE-319 (Cleartext Transmission of Sensitive Information).

Are there public exploits for Ktor.io vulnerabilities?

Yes — 2 of Ktor.io's CVEs have a known public exploit.

How many critical Ktor.io vulnerabilities are there?

Ktor.io has 3 critical and 5 high-severity CVEs.

What is the average severity of Ktor.io CVEs?

The average CVSS base score across Ktor.io's scored CVEs is 6.5.

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21 CVEs

Ktor.io Vulnerabilities

Name: Ktor.io vulnerability dataset (CVEs)
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

CVE security advisories and vulnerability history for Ktor.io.

21

Total CVEs

Published

0

In CISA KEV

Exploited in the wild

2

Public exploits

PoC or exploit code

6.5

Avg CVSS

2019–2025

Overview

Ktor.io has 21 published CVE records since 2019, of which 0 are in CISA's Known Exploited Vulnerabilities catalog and 2 have a known public exploit. The average CVSS base score across scored CVEs is 6.5.

Security scorecard

A quick read on Ktor.io's vulnerability posture, as a share of its 21 published CVEs.

Average CVSS: 6.5
Critical / high: 38%
Actively exploited (KEV): 0%
Public exploit available: 10%
Patch available: 90%

Severity and exploitation

How the CVSS severity of Ktor.io's CVEs breaks down, plus how many are exploited in the wild or have public exploit code.

Critical3

High5

Medium11

Low2

In CISA’s Known Exploited Vulnerabilities catalog

0

None of Ktor.io's CVEs are currently listed in CISA's KEV catalog.

Public exploits

2

2 of Ktor.io's CVEs have a known public exploit available.

Most affected products

The Ktor.io products with the most published CVEs. Follow any product to browse its versions and vulnerabilities.

Common weakness types

The CWE weakness categories most often found in Ktor.io CVEs. Follow any weakness for its full explanation.

CNAs that assign these CVEs

The CVE Numbering Authorities that publish Ktor.io CVE records.

Disclosure activity by year

How many Ktor.io CVEs were published each year.

2019

5

2020

2

2021

4

2022

4

2023

4

2024

1

2025

1

Latest Ktor.io CVEs

The most recently disclosed vulnerabilities affecting Ktor.io.

Medium vulnerability · 2025-03-12
CWE-444
Medium · CVSS 5.3
EPSS 0.3%2025-03-12
JetBrains Ktor information disclosure
CWE-524
Medium · CVSS 5.3
EPSS 0.4%2024-10-17
Critical vulnerability · 2023-10-09
CWE-295
Critical · CVSS 9.1
EPSS 0.3%2023-10-09
Critical vulnerability · 2023-10-09
CWE-611
Critical · CVSS 9.8
EPSS 0.7%2023-10-09
Low vulnerability · 2023-06-01
CWE-209
Low · CVSS 3.3
EPSS 0.2%2023-06-01
High vulnerability · 2023-04-24
CWE-35
High · CVSS 7.5
EPSS 0.8%2023-04-24
JetBrain Ktor before 2.1.0 vulnerable to selection of wrong authentication provider
CWE-287
Medium · CVSS 6.5
EPSS 0.7%2022-08-12
JetBrains Ktor before 2.1.0 was vulnerable to a Reflect File Download attack
CWE-184
Medium · CVSS 6.1
EPSS 0.5%2022-08-12
High vulnerability · 2022-05-12
CWE-342
High · CVSS 8.7
EPSS 0.9%2022-05-12
Low vulnerability · 2022-04-11
CWE-330
Low · CVSS 3.3
EPSS 0.6%2022-04-11
High vulnerability · 2021-11-09
CWE-287
High · CVSS 7.5
EPSS 0.9%2021-11-09
Medium vulnerability · 2021-02-03
CWE-444
Medium · CVSS 5.3
EPSS 0.8%2021-02-03

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Other vendors

CVE counts for other vendors.

microsoft41,739 CVEs linux25,260 CVEs Google17,495 CVEs Apple15,495 CVEs Oracle13,348 CVEs Debian10,233 CVEs IBM9,452 CVEs Red Hat8,581 CVEs

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Frequently asked questions

Common questions about Ktor.io vulnerabilities.

How many CVEs does Ktor.io have?: Ktor.io has 21 published CVE records since 2019, including 1 in the last two years.
How many Ktor.io CVEs are in CISA KEV?: None of Ktor.io's CVEs are currently listed in CISA's Known Exploited Vulnerabilities catalog.
Which Ktor.io products have the most CVEs?: The Ktor.io products with the most published CVEs are Ktor, io.ktor:ktor, io.ktor:ktor-client-core-jvm.
What are the most common weakness types in Ktor.io CVEs?: Ktor.io's CVEs most often map to these CWE weakness types: CWE-444 (Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')), CWE-287 (Improper Authentication), CWE-326 (Inadequate Encryption Strength), CWE-319 (Cleartext Transmission of Sensitive Information).
Are there public exploits for Ktor.io vulnerabilities?: Yes — 2 of Ktor.io's CVEs have a known public exploit.
How many critical Ktor.io vulnerabilities are there?: Ktor.io has 3 critical and 5 high-severity CVEs.
What is the average severity of Ktor.io CVEs?: The average CVSS base score across Ktor.io's scored CVEs is 6.5.

References

Vulnerability data is sourced from the CVE Program; severity, KEV, and exploit signals are aggregated by RadicalNotion.AI.

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