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CVE IDCVE-2023-45613GitHub advisory IDGHSA-2fvw-ppfc-cm77

In JetBrains Ktor before 2.3.5 server certificates were not verified

CVE-2023-45613 (GitHub advisory GHSA-2fvw-ppfc-cm77) is a medium-severity vulnerability with a CVSS 3.1 base score of 6.8, classed as Improper Certificate Validation (CWE-295), in github.com/ktorio/ktor (Git repository). Affected versions: < 2.3.5. It is fixed in 2.3.5.

Medium6.8Fix availableUnreviewed advisory

Published 9 Oct 2023Updated 18 Sept 2024

6.8MediumCVSS 3.1
CVE ID
CVE-2023-45613
GHSA ID
GHSA-2fvw-ppfc-cm77
EPSS
0.29%higher than 19% of CVEs
Weakness (CWE)
  • CWE-295Improper Certificate Validation
KEV status
Not in KEV
Published
9 Oct 2023
Updated
18 Sept 2024
Ecosystem
  • Git repositories
Assigned by (CNA)
JetBrains

Summary

Source: GitHub Advisory Database

In JetBrains Ktor before 2.3.5 server certificates were not verified

Technical details

Source: GitHub Advisory Database

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

Medium6.8Base score from GitHub Advisory Database

Attack Vector AV
Network
Attack Complexity AC
High
Privileges Required PR
None
User Interaction UI
Required
Scope S
Unchanged
Confidentiality C
High
Integrity I
High
Availability A
None

CISA SSVC decision points

Exploitation
none
No public exploitation evidence
Automatable
no
Needs manual steps per target
Technical impact
total
Full control of the affected system

CISA Coordinator assessment (SSVC 2.0.3) via CVE.org.

Affected packages

Source: OSV (CVE record)

  • https://github.com/ktorio/ktor
    Git repositories
    pkg:github/ktorio/ktor
    Affected versions
    < 2.3.5
    Fixed in
    2.3.5
    Show 88 listed versions
    • 2.3.4
    • 2.3.3
    • 2.3.2
    • 2.3.1
    • 2.3.0
    • 2.2.4
    • 2.2.3
    • 2.2.2
    • 2.2.1
    • 2.2.0
    • 2.1.3
    • 2.1.2

Fix

Source: OSV (CVE record)

Fix available

Upgrade to 2.3.5 or later.

Vulnerability intelligence

References

Questions about CVE-2023-45613

What is the GHSA ID for CVE-2023-45613?
GitHub tracks CVE-2023-45613 as GHSA-2fvw-ppfc-cm77.
What is the CVSS score of CVE-2023-45613?
CVE-2023-45613 has a CVSS 3.1 base score of 6.8 (Medium), vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.
Which versions are affected by CVE-2023-45613?
https://github.com/ktorio/ktor (GIT): < 2.3.5.
How do I fix CVE-2023-45613?
Upgrade to 2.3.5 or later.
What is the Package URL (PURL) for CVE-2023-45613?
The affected package's PURL is pkg:github/ktorio/ktor.
Is CVE-2023-45613 exploited in the wild?
CISA's Known Exploited Vulnerabilities catalog doesn't list CVE-2023-45613. That means no confirmed exploitation has been catalogued, not that it is safe to leave unpatched. CISA's SSVC assessment rates exploitation as "none". EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 19% of CVEs.

Data sources

Upstream records

  • OSV (GitHub advisory)No record
  • GitHub Advisory DatabaseLoadedRaw JSON
  • OSV (CVE record)LoadedRaw JSON
  • CVE.orgLoaded
  • CISA KEV catalogLoaded

Fetched 2 days ago (13 Oct 2026, 14:00 UTC). Records refresh automatically after 24 hours.

Where each part of this page came from

Title and description
GitHub Advisory Database
Severity score
GitHub Advisory Database
Weakness (CWE)
GitHub Advisory Database
Affected packages
OSV (CVE record)
Fix
OSV (CVE record)
References
Computed by CVEminer
SSVC
CVE.org
KEV status
CISA KEV catalog
EPSS
GitHub Advisory Database

OSV and GitHub Advisory Database content is licensed CC BY 4.0. Values marked as computed or derived were calculated by CVEminer from the upstream data.