CVE-2026-123319
In JetBrains Ktor before 3.6.1 missing Domain attribute validation in client cookie storage...
In JetBrains Ktor before 3.6.1 missing Domain attribute validation in client cookie storage allowed cookie injection
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
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
In JetBrains Ktor before 3.6.1 missing Domain attribute validation in client cookie storage allowed cookie injection
- Record
CVE-2026-123319- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-565
- Updated
- 2026-11-06
EUVDEUVD-2026-118083
In JetBrains Ktor before 3.6.1 missing Domain attribute validation in client cookie storage allowed cookie injection
- Record
EUVD-2026-118083- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-06
GitHub AdvisoriesGHSA-2qr9-2f88-gccj
In JetBrains Ktor before 3.6.1 missing Domain attribute validation in client cookie storage...
In JetBrains Ktor before 3.6.1 missing Domain attribute validation in client cookie storage allowed cookie injection
- Record
GHSA-2qr9-2f88-gccj- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-565
- Updated
- 2026-11-06
NVD
In JetBrains Ktor before 3.6.1 missing Domain attribute validation in client cookie storage allowed cookie injection
- Record
CVE-2026-123319- CVSS 3.1
- 3.7 Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-565
- Updated
- 2026-11-07
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| published | EUVD | |
| published | EUVD, NVD | |
| aliases, references, title | GitHub Advisories | |
| cwes, severity | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-123319 is a low vulnerability (CVSS 3.7) in Jetbrains Ktor, published November 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 5th percentile. No source names a fixed version.