CVE-2026-103484

IVFFlat index build in pgvector before 0.8.7 allows a database user to write data out-of-bounds, which can lead to arbitrary code execution.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-25)

CWEs

CWE-787, CWE-1284

Published

2026-10-01

Modified

2026-10-02

Record from

the NVD, synced 2026-10-19

References

• https://github.com/pgvector/pgvector/commit/ee00d39ab30c2a7cf9510abf9288c624d91db156
• https://github.com/pgvector/pgvector/issues/1036

Check your stackJSON