CVE-2026-123318Medium· 4.8▾ SunlitIn JetBrains Ktor before 3.6.1 hTTP request smuggling was possible in the CIO engine
▾ Sunlit zone — Low / medium · no exploitation signal
impact 26.4 · likelihood 0 · exploitation 0
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In JetBrains Ktor before 3.6.1 hTTP request smuggling was possible in the CIO engine
Ktor < 3.6.1Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-123317High· 8.1In JetBrains Ktor before 3.6.1 session forgery was possible via tampered encrypted session cookies
CVE-2026-123319Low· 3.7In JetBrains Ktor before 3.6.1 missing Domain attribute validation in client cookie storage allowed cookie injection
CVE-2026-123832Critical· 9.6In JetBrains CLion before 2026.2 code execution was possible in Safe Mode via JSON compilation database
CVE-2026-123831Critical· 9.6In JetBrains CLion before 2026.2, 2026.1.4 code execution was possible in Safe Mode via Meson project settings
CVE-2026-123836High· 8.8In JetBrains Datalore before 2026.4 workspace collaborators could obtain the owner's SSH private key via Git backup
CVE-2026-123834High· 7.5In JetBrains Datalore before 2026.4 improper scope validation in database tasks allowed using another workspace's service account