CVE-2026-18715: CWE-611 Improper Restriction of XML External Entity Reference
CVE-2026-18715 is a medium severity vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6. It involves improper restriction of XML external entity references (CWE-611), which could allow a remote authenticated attacker to obtain sensitive information. The vulnerability does not impact integrity or availability, only confidentiality. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability affects IBM i versions 7.3 through 7.6 and arises from improper processing of XML external entities, classified as CWE-611. A remote attacker with authentication privileges could exploit this flaw to access sensitive information. The CVSS v3.1 base score is 6.5, reflecting a network attack vector with low attack complexity and no user interaction required. The impact is limited to confidentiality loss; integrity and availability are not affected. No vendor advisory or patch information is currently provided, and no known exploits have been reported.
Potential Impact
An authenticated remote attacker could leverage this vulnerability to obtain sensitive information from affected IBM i systems. The confidentiality impact is high, but there is no impact on integrity or availability. This could lead to unauthorized disclosure of sensitive data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor IBM security advisories for updates. No specific mitigations are provided at this time.
CVE-2026-18715: CWE-611 Improper Restriction of XML External Entity Reference
Description
CVE-2026-18715 is a medium severity vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6. It involves improper restriction of XML external entity references (CWE-611), which could allow a remote authenticated attacker to obtain sensitive information. The vulnerability does not impact integrity or availability, only confidentiality. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 6.5medium
Affected software
IBM
cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.5.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects IBM i versions 7.3 through 7.6 and arises from improper processing of XML external entities, classified as CWE-611. A remote attacker with authentication privileges could exploit this flaw to access sensitive information. The CVSS v3.1 base score is 6.5, reflecting a network attack vector with low attack complexity and no user interaction required. The impact is limited to confidentiality loss; integrity and availability are not affected. No vendor advisory or patch information is currently provided, and no known exploits have been reported.
Potential Impact
An authenticated remote attacker could leverage this vulnerability to obtain sensitive information from affected IBM i systems. The confidentiality impact is high, but there is no impact on integrity or availability. This could lead to unauthorized disclosure of sensitive data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor IBM security advisories for updates. No specific mitigations are provided at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-08-03T16:08:57.358Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a7e2fb3bf8831d539cb5cde
Added to database: 08/13/2026, 20:57:23 UTC
Last enriched: 08/21/2026, 14:00:29 UTC
Last updated: 09/27/2026, 13:47:43 UTC
Views: 68
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