| Name | CVE-2026-15742 |
| 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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4740-1, DSA-6438-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| postgresql-13 (PTS) | bullseye | 13.16-0+deb11u1 | vulnerable |
| bullseye (security) | 13.23-0+deb11u4 | vulnerable | |
| postgresql-15 (PTS) | bookworm | 15.18-0+deb12u1 | vulnerable |
| bookworm (security) | 15.19-0+deb12u1 | fixed | |
| postgresql-17 (PTS) | trixie | 17.10-0+deb13u1 | vulnerable |
| trixie (security) | 17.11-0+deb13u1 | fixed | |
| postgresql-18 (PTS) | forky | 18.4-1 | vulnerable |
| sid | 18.6-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| postgresql-13 | source | (unstable) | (unfixed) | |||
| postgresql-15 | source | bookworm | 15.19-0+deb12u1 | DLA-4740-1 | ||
| postgresql-15 | source | (unstable) | (unfixed) | |||
| postgresql-17 | source | trixie | 17.11-0+deb13u1 | DSA-6438-1 | ||
| postgresql-17 | source | (unstable) | (unfixed) | |||
| postgresql-18 | source | (unstable) | 18.6-1 |
https://www.postgresql.org/support/security/CVE-2026-15742/
https://www.postgresql.org/about/news/postgresql-186-1711-1615-1519-1424-and-19-beta-3-released-3365/