CVE-2023-34339

LOWNVD 3.33.3—

3.3

In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message

CVSS v3: 3.3
EG Score: 3.3(medium)
EPSS: 0.0%
KEV: Not listed

Published

June 1, 2023

Last Modified

November 21, 2024

References (2)

cve@jetbrainshttps://www.jetbrains.com/privacy-security/issues-fixed/
af854a3a-2127-422b-91ae-364da2661108https://www.jetbrains.com/privacy-security/issues-fixed/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-209Generation of Error Message Containing Sensitive Information

Data Freshness Timeline

(refreshed 5× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-25 00:09 UTCEG score recompute
2026-05-25 00:09 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-34339?

CVE-2023-34339 is a low vulnerability published on June 1, 2023. In JetBrains Ktor before 2.3.1 headers containing authentication data could be added to the exception's message

When was CVE-2023-34339 disclosed?

CVE-2023-34339 was first published in the National Vulnerability Database on June 1, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-34339 actively exploited?

CVE-2023-34339 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-34339?

CVE-2023-34339 has a CVSS v3 base score of 3.3 (NVD).

How do I remediate CVE-2023-34339?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-34339, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-34339

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-34339?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)