Vulnerability · Published Aug 19, 2026 · Assigned by ibm

CVE-2026-18544Portieris is vulnerable to Image Policy Bypass via Unvalidated ownerReference

High 8.1

In plain English

A high-severity missing authorization in Portieris from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.4%top 62.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

IBM Portieris 0.5.0 through 0.14.2 could allow a remote authenticated attacker to bypass image policy enforcement due to improper authorization of pod owner references.

Affected products (as reported)

Vendor	Product	Versions
IBM	Portieris	0.5.0 – through 0.14.2

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

https://www.ibm.com/support/pages/node/7284125 vendor-advisory, patch