PT-2026-49302 · Clickhouse+1 · Clickhouse+1

Pyuysig · CVE-2026-39196 · Published 2026-06-15 · Updated 2026-06-16

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Vector versions prior to 0.55.0

Description The ClickHouse sink contains a SQL/identifier injection flaw. The software escaped the table identifier but interpolated the database value raw into the INSERT statement, allowing a crafted database value to break out of identifier quoting. This occurs in the KeyPartitioner::partition() function via the set uri query parameter, which could allow attackers to access sensitive database information using crafted SQL statements.

Recommendations Update to version 0.55.0.

Exploit

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2026-39196

Affected Products

Clickhouse

Vector

References · 4

• 🔥 https://gist.github.com/pyuysig/423b15c69e3cd851c1e24c1312a0551a · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-39196 · Security Note
• https://twitter.com/UpwindMDR/status/2066994209945440512 · Twitter Post
• https://t.me/cveNotify/167517 · Telegram Post