Unauthenticated API access via cache key collision
Published Aug 24, 2026 · Updated Aug 24, 2026
Authentication bypass in phpIPAM before 1.8.2 allows remote attackers to gain full REST API access through an object-cache collision. The REST API object cache keys entries only by lookup value and omits the searched column, so an app_id lookup can prime a later app_code lookup. No credentials are required; the numeric database row identifier then functions as an API token for reading, writing, and deleting IP address management records.
Summary
What happened
Authentication bypass in phpIPAM before 1.8.2 allows remote attackers to gain full REST API access through an object-cache collision. The REST API object cache keys entries only by lookup value and omits the searched column, so an app_id lookup can prime a later app_code lookup. No credentials are required; the numeric database row identifier then functions as an API token for reading, writing, and deleting IP address management records.
The record
- CVE
- CVE-2026-67602
- Published
- Aug 24, 2026
- Updated
- Aug 24, 2026
- Vendor
- phpIPAM
- Product
- phpIPAM
- Classifications
- T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 24, 2026CVE publishedPublication date reported by the CVE source.
- Aug 24, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <1.8.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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