CVE-2026-18022: Integer wraparound in IVFFlat index build in pgvector before 0.8.6 allows a database user to write data out-of-bounds, which could lead to arbitrary code execution. Only 32-bit sys
Integer wraparound in IVFFlat index build in pgvector before 0.8.6 allows a database user to write data out-of-bounds, which could lead to arbitrary code execution. Only 32-bit systems are affected.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-18022
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-180220.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-18022 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Integer wraparound in
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- unknownCVE-2026-54890: Integer Underflow (Wrap or Wraparound) vulnerability in erlang otp erlang/otp (erts modules), …nvd · 2026-07-27
- highCVE-2026-55969: Integer Overflow or Wraparound vulnerability in Apache Thrift C++, c_glib, Go, netstd, Delphi …nvd · 2026-07-27
- highCVE-2026-45813: Out-of-bounds Write, Integer Underflow (Wrap or Wraparound) vulnerability in Apache NimBLE BAS…nvd · 2026-07-24
- highCVE-2026-59117: Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute …nvd · 2026-07-16
- mediumCVE-2026-48354: CAI Content Credentials is affected by an Integer Overflow or Wraparound vulnerability that co…nvd · 2026-07-14
- mediumCVE-2026-48298: CAI Content Credentials is affected by an Integer Underflow (Wrap or Wraparound) vulnerability…nvd · 2026-07-14
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