CVE-2023-34339
In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the...
In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message
- Record
CVE-2023-34339- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-209
- Updated
- 2026-11-02
EUVDEUVD-2023-38420
In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message
- Record
EUVD-2023-38420- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w2c4-vpgj-g3jp
In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the...
In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message
- Record
GHSA-w2c4-vpgj-g3jp- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-209
- Updated
- 2026-11-02
NVD
In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message
- Record
CVE-2023-34339- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-209
- Updated
- 2026-11-02
OSV
In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message
- Record
CVE-2023-34339- CVSS 3.1
- 3.3 Low
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-209
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-34339 is a low vulnerability (CVSS 3.3) in Jetbrains Ktor, published June 1, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.21%, the 11th percentile. No source names a fixed version.