CVE-2019-19703
CVE-2019-19703 is a medium-severity vulnerability in Jetbrains Ktor with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 5.8
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-601
- Affected product: Jetbrains Ktor
- Published:
- Last modified:
Description
In Ktor through 1.2.6, the client resends data from the HTTP Authorization header to a redirect location.
Frequently asked questions
- What is CVE-2019-19703?
- In Ktor through 1.2.6, the client resends data from the HTTP Authorization header to a redirect location.
- How severe is CVE-2019-19703?
- CVE-2019-19703 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2019-19703 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-19703?
- CVE-2019-19703 affects Jetbrains Ktor. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-19703?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2019-19703 published?
- CVE-2019-19703 was published on 2019-12-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:jetbrains:ktor:*:*:*:*:*:*:*:*
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