CVE-2026-6664
Last modified
CVE-2026-6664 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet.. EPSS estimates a 0.70% chance of exploitation in the next 30 days.
Description
An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Pgbouncer | Pgbouncer | < 1.25.2 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-6664?
How severe is CVE-2026-6664?
How do I fix CVE-2026-6664?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-6656Crypt::Password versions through 0.28 for Perl are susceptib…7.5
- CVE-2026-6657A vulnerability in jupyter-server versions 1.12.0 through 2.…8.8
- CVE-2026-6658A vulnerability in jupyter/nbconvert versions <= 7.17.0 allo…5.4
- CVE-2026-6659Crypt::PasswdMD5 versions through 1.42 for Perl generates in…7.5
- CVE-2026-6662A vulnerability was found in ericc-ch copilot-api up to 0.7.…7.3
- CVE-2026-6663The GWD Connect plugin for WordPress is vulnerable to missin…4.8
- CVE-2026-66642Cross-Site Request Forgery (CSRF) vulnerability in WP Umbrel…5.4
- CVE-2026-6665The SCRAM code in PgBouncer before 1.25.2 did not check the …9.8
- CVE-2026-66659Improper Neutralization of Special Elements used in an SQL C…9.3
- CVE-2026-6666A possible null pointer reference in PgBouncer before 1.25.2…7.5
- CVE-2026-66662Unauthenticated Privilege Escalation in Frontend Admin by Dy…9.8
- CVE-2026-66663Unauthenticated Cross Site Scripting (XSS) in WP Data Access…7.1
Are you affected by CVE-2026-6664?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST