← All advisories

High severity7.5NVD Advisory· Published Nov 9, 2021· Updated Jun 17, 2026

CVE-2021-43203

CVE-2021-43203

Description

In JetBrains Ktor before 1.6.4, nonce verification during the OAuth2 authentication process is implemented improperly.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3

Jetbrains/Ktor2 versions
cpe:2.3:a:jetbrains:ktor:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:jetbrains:ktor:*:*:*:*:*:*:*:*range: <1.6.4
- (no CPE)range: <1.6.4
JetBrains/Ktordescription

Patches

Vulnerability mechanics

References

1

blog.jetbrains.com/blog/2021/11/08/jetbrains-security-bulletin-q3-2021/nvdVendor Advisory

News mentions

0

No linked articles in our index yet.