CVE-2026-15742
Modified
Modified - Updated After Analysis
Integer Wraparound in PostgreSQL fuzzystrmatch
Vulnerability report for CVE-2026-15742, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-08-13
Last updated on: 2026-08-29
Assigner: PostgreSQL
Description
Description
Integer wraparound in PostgreSQL fuzzystrmatch allows a user to direct writes to a huge range of addresses, executing arbitrary code as the operating system user running the database, via extreme inputs to SQL function levenshtein() or levenshtein_less_equal(). Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| postgresql | postgresql | From 14.0 (inc) to 14.24 (exc) |
| postgresql | postgresql | From 15.0 (inc) to 15.19 (exc) |
| postgresql | postgresql | From 16.0 (inc) to 16.15 (exc) |
| postgresql | postgresql | From 17.0 (inc) to 17.11 (exc) |
| postgresql | postgresql | From 18.0 (inc) to 18.5 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-190 | The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number. |
