PostgreSQL REINDEX CONCURRENTLY Drop Index RCE (pre-18.7,17.12,16.16,15.20,14.25)
CVE-2026-116336 Published on November 12, 2026
PostgreSQL REINDEX CONCURRENTLY does not block DROP INDEX during index functions
Operation on a dropped index in PostgreSQL REINDEX CONCURRENTLY allows an object creator to execute arbitrary code as the operating system user running the database, via an index expression that issues DROP INDEX. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Vulnerability Analysis
Weakness Types
What is an Object Type Confusion Vulnerability?
The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
CVE-2026-116336 has been classified to as an Object Type Confusion vulnerability or weakness.
Operation on a Resource after Expiration or Release
The software uses, accesses, or otherwise operates on a resource after that resource has been expired, released, or revoked.
Products Associated with CVE-2026-116336
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Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.