Unauthenticated RCE vulnerability against ClickHouse Server (ClickHouse ClickHouse)

CVE-2026-116366
CRITICAL 9.5

At a glance

Source
NVD
State
PUBLISHED
Published
Updated
Assigner
ClickHouse
NVD status
Received

Description

An issue has been discovered in ClickHouse Server that, under certain conditions, could allow an unauthenticated user with network access to execute arbitrary code on the ClickHouse Server.

Weaknesses (CWE)

  • CWE-190 — Integer Overflow or Wraparound

References

Scores

VersionScoreVectorScored by
CVSS 4.0CRITICAL 9.5CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HClickHouse
CVSS 4.0CRITICAL 9.5CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD · cb7ba516-3b07-4c98-b0c2-715220f1a8f6 (Secondary)

European references

Affected products

ProductVersions
ClickHouse · ClickHouseaffected 26.3 < 26.3.62.3-lts ; affected 26.8 < 26.8.36.3-lts ; affected 26.9 < 26.9.27.3-stable ; affected 26.10 < 26.10.3.7-stable
ClickHouse · ClickHouse Cloudaffected 25.12 < 25.12.1.1713 ; affected 26.2 < 26.2.1.835 ; affected 26.4 < 26.4.1.2704 ; affected 26.6 < 26.6.1.2439 ; affected 26.8 < 26.8.1.597 ; affected 26.10 < 26.10.2.84

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD