Vulnerability · Published Aug 24, 2026 · Assigned by VulnCheck

CVE-2026-67602phpIPAM < 1.8.2 Authentication Bypass via REST API Object Cache

Critical 9.1

In plain English

A critical-severity security flaw in phpipam from phpipam. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).

Severity (CVSS 3.1)9.1Critical

Exploit odds (30 days)0.6%top 49.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

phpIPAM before 1.8.2 contains an authentication bypass vulnerability in the REST API that allows unauthenticated attackers to gain full API access by exploiting an insecure object cache keying mechanism. The cache is keyed by lookup value alone without including the searched column, enabling an entry written during an app_id lookup to satisfy a subsequent app_code lookup, allowing attackers to use the numeric database row identifier as an API token to read, write, and delete all IP address management records.

Affected products (as reported)

Vendor	Product	Versions
phpipam	phpipam	0 – before 1.8.2

Weakness: CWE-706 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

phpIPAM v1.8.2 Release Notes release-notes
Patch Commit patch
https://www.vulncheck.com/advisories/phpipam-authentication-bypass-via-rest-api-object-cache third-party-advisory