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

Critical 9.3 Published Updated

Unauthenticated attackers can bypass REST API authentication in phpIPAM to read, write, and delete all IP address management records.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-67602?

CVE-2026-67602 is a critical authentication bypass vulnerability in phpipam, published on 24 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

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.

Weakness: CWE-706

Which versions are affected by CVE-2026-67602?

How do I fix CVE-2026-67602?

No fix has been published for CVE-2026-67602 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-67602 being exploited?

There is no known exploitation of CVE-2026-67602 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-368g-p5fp-42vr.

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