Memory-Safety CVE-2026-33815 in pgx/v5 (Go Postgres Driver)
CVE-2026-33815 Published on April 7, 2026
CVE-2026-33815 in github.com/jackc/pgx
Memory-safety vulnerability in github.com/jackc/pgx/v5.
Vulnerability Analysis
CVE-2026-33815 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and a small impact on availability.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-33815 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-33815
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Affected Versions
github.com/jackc/pgx/v5/pgproto3:- Before 5.9.0 is affected.
- Version 4.2.0-13 and below * is unaffected.
- Version 0:1.0.3-1.el9em and below * is unaffected.
- Version 0:1.1.3-1.el10em and below * is unaffected.
- Version 0:1.1.3-1.el9em and below * is unaffected.
- Version 1780101236 and below * is unaffected.
- Version 1780101226 and below * is unaffected.
- Version 1780101239 and below * is unaffected.
- Version 1779953535 and below * is unaffected.
- Version 1779210675 and below * is unaffected.
- Version 1779210608 and below * is unaffected.
- Version 1779209992 and below * is unaffected.
- Version 1779925273 and below * is unaffected.
- Version 1780677003 and below * is unaffected.
- Version 1780926805 and below * is unaffected.
- Version 1777976489 and below * is unaffected.
- Version 1777976489 and below * is unaffected.
- Version 1777976489 and below * is unaffected.
- Version 1777307791 and below * is unaffected.
- Version 1777307791 and below * is unaffected.
- Version 1777307791 and below * is unaffected.
- Version 1777986630 and below * is unaffected.
- Version 1777986630 and below * is unaffected.
- Version 1777986630 and below * is unaffected.
- Version 1783667125 and below * is unaffected.
- Version 1783666755 and below * is unaffected.
- Version 1784054598 and below * is unaffected.
- Version 1784055387 and below * is unaffected.
- Version 1784055726 and below * is unaffected.
- Version 1783667517 and below * is unaffected.
- Version 1783667577 and below * is unaffected.
- Version 1783667611 and below * is unaffected.
- Version 1784055020 and below * is unaffected.
- Version 1783667641 and below * is unaffected.
- Version 1784055586 and below * is unaffected.
- Version 1783667790 and below * is unaffected.
- Version 1783667859 and below * is unaffected.
- Version 1783667875 and below * is unaffected.
- Version 1783667869 and below * is unaffected.
- Version 1783667877 and below * is unaffected.
- Version 1784055576 and below * is unaffected.
- Version 1784055244 and below * is unaffected.
- Version 1784055382 and below * is unaffected.
- Version 1783668266 and below * is unaffected.
- Version 1783668288 and below * is unaffected.
- Version 1783669219 and below * is unaffected.
- Version 1780053572 and below * is unaffected.
- Version 1780048814 and below * is unaffected.
- Version 1780053572 and below * is unaffected.
- Version 1780053572 and below * is unaffected.
- Version 1780053572 and below * is unaffected.
- Version 1780053572 and below * is unaffected.
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.