CVE-2019-18657
ClickHouse before 19.13.5.44 allows HTTP header injection via the url table function.
ClickHouse before 19.13.5.44 allows HTTP header injection via the url table function.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
ClickHouse before 19.13.5.44 allows HTTP header injection via the url table function.
- Record
CVE-2019-18657- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-74
- Updated
- 2026-11-02
CVE List No score
ClickHouse before 19.13.5.44 allows HTTP header injection via the url table function.
- Record
CVE-2019-18657- Updated
- 2026-11-02
EUVDEUVD-2019-8375 No score
ClickHouse before 19.13.5.44 allows HTTP header injection via the url table function.
- Record
EUVD-2019-8375- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qgx5-5m84-4526
ClickHouse before 19.13.5.44 allows HTTP header injection via the url table function.
ClickHouse before 19.13.5.44 allows HTTP header injection via the url table function.
- Record
GHSA-qgx5-5m84-4526- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-74
- Updated
- 2026-11-02
OSV
ClickHouse before 19.13.5.44 allows HTTP header injection via the url table function.
- Record
CVE-2019-18657- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-18657 is a medium vulnerability (CVSS 5.3) in Clickhouse, published October 31, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.47%, the 73rd percentile. No source names a fixed version.