CVE-2019-18657

MEDIUMNVD 5.35.3—

5.3

ClickHouse before 19.13.5.44 allows HTTP header injection via the url table function.

CVSS v3: 5.3
EG Score: 5.3(medium)
EPSS: 67.2%
KEV: Not listed

Published

October 31, 2019

Last Modified

June 25, 2025

References (6)

cve@mitrehttps://github.com/ClickHouse/ClickHouse/blob/master/CHANGELOG.md
cve@mitrehttps://github.com/ClickHouse/ClickHouse/pull/6466
cve@mitrehttps://github.com/ClickHouse/ClickHouse/pull/7526/files
af854a3a-2127-422b-91ae-364da2661108https://github.com/ClickHouse/ClickHouse/blob/master/CHANGELOG.md
af854a3a-2127-422b-91ae-364da2661108https://github.com/ClickHouse/ClickHouse/pull/6466
af854a3a-2127-422b-91ae-364da2661108https://github.com/ClickHouse/ClickHouse/pull/7526/files

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

Data Freshness Timeline

(refreshed 10× in last 7d / 18× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 12:22 UTCEG score recompute
2026-05-27 12:22 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2019-18657?

CVE-2019-18657 is a medium vulnerability published on October 31, 2019. ClickHouse before 19.13.5.44 allows HTTP header injection via the url table function.

When was CVE-2019-18657 disclosed?

CVE-2019-18657 was first published in the National Vulnerability Database on October 31, 2019, with the most recent update on June 25, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-18657 actively exploited?

CVE-2019-18657 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 67.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-18657?

CVE-2019-18657 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2019-18657?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-18657, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-18657

Explore →

Is Your Infrastructure Affected by CVE-2019-18657?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2019-18657

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2019-18657?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)