CVE-2026-18022High· 8.8▾ TwilightA flaw was found in pgvector. An integer wraparound vulnerability exists during the IVFFlat index build process. This flaw allows a database user on a 32-bit system to write data outside of allocated memory buffers. Successful exploitation…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the vendor's CSAF advisory record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 7.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.6%
Last analysed / modified upstream
A flaw was found in pgvector. An integer wraparound vulnerability exists during the IVFFlat index build process. This flaw allows a database user on a 32-bit system to write data outside of allocated memory buffers. Successful exploitation could lead to arbitrary code execution.
pgvector: pgvector: Arbitrary Code Execution via Integer Wraparound — rated Important by Red Hat. Released 2026-07-29, updated 2026-10-15.
Not affected:
Refer to the advisory for fix availability.
Connected by shared product, vendor, weakness, or advisory.
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