CVE-2026-68762
In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible
In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible
- Record
CVE-2026-68762- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-835
- Updated
- 2026-11-02
EUVDEUVD-2026-60242
In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible
- Record
EUVD-2026-60242- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-cw22-f535-mjjw
In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible
In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible
- Record
GHSA-cw22-f535-mjjw- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-835
- Updated
- 2026-11-02
NVD
In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible
- Record
CVE-2026-68762- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-835
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-68762 is a medium vulnerability (CVSS 5.9) in Jetbrains Ktor, published August 17, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 30th percentile. No source names a fixed version.