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Published

Permalink CVE-2026-18022

8.8 HIGH

CVSS version (CVSS): 3.1
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Unchanged (U)
Confidentiality (C): High (H)
Integrity (I): High (H)
Availability (A): High (H)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): High (H)
Modified Availability (MA): High (H)

updated 12 hours ago by @LeSuisse Activity log

Created suggestion 1 day, 6 hours ago
@LeSuisse ignored
9 packages
- python314Packages.pgvector
- python313Packages.pgvector
- postgresqlPackages.pgvectorscale
- postgresql14Packages.pgvectorscale
- postgresql15Packages.pgvectorscale
- postgresql16Packages.pgvectorscale
- postgresql17Packages.pgvectorscale
- postgresql19Packages.pgvectorscale
- postgresql18Packages.pgvectorscale
12 hours ago
@LeSuisse accepted 12 hours ago
@LeSuisse published on GitHub 12 hours ago

pgvector buffer overflow via integer wraparound in IVFFlat index build on 32-bit systems

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.

References

Affected products

pgvector

<0.8.6

Matching in nixpkgs

pkgs.postgresqlPackages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.3
- nixpkgs-unstable 0.8.3
- nixos-unstable-small 0.8.5
nixos-26.05 0.8.2
- nixos-26.05-small 0.8.2
- nixpkgs-26.05-darwin 0.8.2

pkgs.postgresql14Packages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.3
- nixpkgs-unstable 0.8.3
- nixos-unstable-small 0.8.5
nixos-26.05 0.8.2
- nixos-26.05-small 0.8.2
- nixpkgs-26.05-darwin 0.8.2

pkgs.postgresql15Packages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.3
- nixpkgs-unstable 0.8.3
- nixos-unstable-small 0.8.5
nixos-26.05 0.8.2
- nixos-26.05-small 0.8.2
- nixpkgs-26.05-darwin 0.8.2

pkgs.postgresql16Packages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.3
- nixpkgs-unstable 0.8.3
- nixos-unstable-small 0.8.5
nixos-26.05 0.8.2
- nixos-26.05-small 0.8.2
- nixpkgs-26.05-darwin 0.8.2

pkgs.postgresql17Packages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.3
- nixpkgs-unstable 0.8.3
- nixos-unstable-small 0.8.5
nixos-26.05 0.8.2
- nixos-26.05-small 0.8.2
- nixpkgs-26.05-darwin 0.8.2

pkgs.postgresql18Packages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.3
- nixpkgs-unstable 0.8.3
- nixos-unstable-small 0.8.5
nixos-26.05 0.8.2
- nixos-26.05-small 0.8.2
- nixpkgs-26.05-darwin 0.8.2

pkgs.postgresql19Packages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.3
- nixpkgs-unstable 0.8.3
- nixos-unstable-small 0.8.5

Ignored packages (9)

pkgs.python313Packages.pgvector

Pgvector support for Python

nixos-unstable 0.4.2
- nixpkgs-unstable 0.4.2
- nixos-unstable-small 0.4.2
nixos-26.05 0.4.2
- nixos-26.05-small 0.4.2
- nixpkgs-26.05-darwin 0.4.2

pkgs.python314Packages.pgvector

Pgvector support for Python

nixos-unstable 0.4.2
- nixpkgs-unstable 0.4.2
- nixos-unstable-small 0.4.2
nixos-26.05 0.4.2
- nixos-26.05-small 0.4.2
- nixpkgs-26.05-darwin 0.4.2

pkgs.postgresqlPackages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0
nixos-26.05 0.9.0
- nixos-26.05-small 0.9.0
- nixpkgs-26.05-darwin 0.9.0

pkgs.postgresql14Packages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0
nixos-26.05 0.9.0
- nixos-26.05-small 0.9.0
- nixpkgs-26.05-darwin 0.9.0

pkgs.postgresql15Packages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0
nixos-26.05 0.9.0
- nixos-26.05-small 0.9.0
- nixpkgs-26.05-darwin 0.9.0

pkgs.postgresql16Packages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0
nixos-26.05 0.9.0
- nixos-26.05-small 0.9.0
- nixpkgs-26.05-darwin 0.9.0

pkgs.postgresql17Packages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0
nixos-26.05 0.9.0
- nixos-26.05-small 0.9.0
- nixpkgs-26.05-darwin 0.9.0

pkgs.postgresql18Packages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0
nixos-26.05 0.9.0
- nixos-26.05-small 0.9.0
- nixpkgs-26.05-darwin 0.9.0

pkgs.postgresql19Packages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0

Published

Permalink CVE-2026-3172

8.1 HIGH

CVSS version (CVSS): 3.1
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Unchanged (U)
Confidentiality (C): High (H)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): None (N)
Modified Availability (MA): High (H)

updated 5 months ago by @LeSuisse Activity log

Created suggestion 5 months ago
@LeSuisse ignored
10 packages
- python312Packages.pgvector
- python313Packages.pgvector
- python314Packages.pgvector
- postgresqlPackages.pgvectorscale
- postgresql13Packages.pgvectorscale
- postgresql14Packages.pgvectorscale
- postgresql15Packages.pgvectorscale
- postgresql16Packages.pgvectorscale
- postgresql17Packages.pgvectorscale
- postgresql18Packages.pgvectorscale
5 months ago
@LeSuisse accepted 5 months ago
@LeSuisse published on GitHub 5 months ago

pgvector buffer overflow in parallel HNSW index build

Buffer overflow in parallel HNSW index build in pgvector 0.6.0 through 0.8.1 allows a database user to leak sensitive data from other relations or crash the database server.

References

https://github.com/pgvector/pgvector/issues/959

Affected products

pgvector

==0.7.0
<0.8.2
==0.6.0

Matching in nixpkgs

pkgs.postgresqlPackages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.1
- nixpkgs-unstable 0.8.1
- nixos-unstable-small 0.8.1

pkgs.postgresql13Packages.pgvector

None

pkgs.postgresql14Packages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.1
- nixpkgs-unstable 0.8.1
- nixos-unstable-small 0.8.1

pkgs.postgresql15Packages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.1
- nixpkgs-unstable 0.8.1
- nixos-unstable-small 0.8.1

pkgs.postgresql16Packages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.1
- nixpkgs-unstable 0.8.1
- nixos-unstable-small 0.8.1

pkgs.postgresql17Packages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.1
- nixpkgs-unstable 0.8.1
- nixos-unstable-small 0.8.1

pkgs.postgresql18Packages.pgvector

Open-source vector similarity search for PostgreSQL

nixos-unstable 0.8.1
- nixpkgs-unstable 0.8.1
- nixos-unstable-small 0.8.1

Ignored packages (10)

pkgs.python312Packages.pgvector

None

pkgs.python313Packages.pgvector

Pgvector support for Python

nixos-unstable 0.4.2
- nixpkgs-unstable 0.4.2
- nixos-unstable-small 0.4.2

pkgs.python314Packages.pgvector

Pgvector support for Python

nixos-unstable 0.4.2
- nixpkgs-unstable 0.4.2
- nixos-unstable-small 0.4.2

pkgs.postgresqlPackages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0

pkgs.postgresql13Packages.pgvectorscale

None

pkgs.postgresql14Packages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0

pkgs.postgresql15Packages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0

pkgs.postgresql16Packages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0

pkgs.postgresql17Packages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0

pkgs.postgresql18Packages.pgvectorscale

Complement to pgvector for high performance, cost efficient vector search on large workloads

nixos-unstable 0.9.0
- nixpkgs-unstable 0.9.0
- nixos-unstable-small 0.9.0

Upstream advisory/issue: https://github.com/pgvector/pgvector/issues/959