High severity · published Sep 30, 2026
CVE-2026-92873
Pgpool-II contains an incorrect implementation of an authentication algorithm, which may allow an unauthenticated attacker to promote an arbitrary watchdog node to the leader node
7.3
CVSS
0.3%
EPSS
No
On KEV
Description
Pgpool-II contains an incorrect implementation of an authentication algorithm, which may allow an unauthenticated attacker to promote an arbitrary watchdog node to the leader node.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PG
Pgpool-II · Pgpool Global Development Group
4.7.0 through 4.7.2; 4.6.0 through 4.6.7; 4.5.0 through 4.5.12; 4.4.0 through 4.4.17; 4.3.0 through 4.3.20; 3.5.x through 4.2.x · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-92873
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-92873
pgpool.net
https://pgpool.net/news/2026-09-29/
jvn.jp
https://jvn.jp/en/jp/JVN22475874/
More from Pgpool-II
9.8
CVE-2025-46801
Pgpool-II provided by PgPool Global Development Group contains an authentication bypass by primary weakness vulnerability
8.8
CVE-2026-92867
An out-of-bounds write vulnerability exists in Pgpool-II , which may allow an authenticated attacker to cause abnormal process termination or arbitrary code execution
7.5
CVE-2026-92871
A NULL pointer dereference vulnerability exists in Pgpool-II, which may allow an unauthenticated attacker to cause abnormal termination of the watchdog process
7.5
CVE-2026-92870
A stack-based buffer overflow vulnerability exists in Pgpool-II, which may allow an unauthenticated attacker to cause abnormal process termination
6.5
CVE-2026-92869
An out-of-bounds write vulnerability exists in Pgpool-II, which may allow an authenticated attacker to cause abnormal process termination