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CVE-2026-116489EUVD-2026-109907

Timescale pgvectorscale before 0.9.1 Type Confusion via Unqualified DiskANN Operator Classes

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 0.9.1
None on Exploit-DB, Metasploit or GitHub

Summary

Timescale pgvectorscale (the DiskANN vector indexing extension for PostgreSQL) is affected, and a low-privileged database user could corrupt server memory to read sensitive data, crash the database server, or gain higher privileges.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

Timescale pgvectorscale before 0.9.1 contains a type confusion vulnerability that allows low-privileged database users to corrupt memory by shadowing pgvector's vector type or operators. Attackers with CREATE privilege on the vectorscale schema can pre-create shadow objects, then build and query DiskANN indexes over crafted values to cause out-of-bounds reads and writes, disclosing memory, crashing the server, or escalating privileges.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • timescale pgvectorscale

    fixed in 0.9.1

References 10

GitHub · timescale/pgvectorscale

vulncheck.com