CVE-2026-15812: Authentication Bypass by Spoofing in Red Hat Red Hat Enterprise Linux 10
A vulnerability was found in the internal Access Control List (ACL) subsystem of kronosnet (Version affected: <= 1.34). When the framework is explicitly configured to manage dynamic links (accepting network traffic from any IP address) without network payload encryption, the validation architecture implicitly trusts the link ID provided within incoming data packets. A remote, unauthenticated attacker can exploit this lack of validation by spoofing a legitimate link ID inside crafted network frames. This allows the attacker to fully bypass the ACL framework and inject arbitrary data packets into the application layer, potentially leading to data corruption or service instabilities.
CVE-2026-15812: Authentication Bypass by Spoofing in Red Hat Red Hat Enterprise Linux 10
Description
A vulnerability was found in the internal Access Control List (ACL) subsystem of kronosnet (Version affected: <= 1.34). When the framework is explicitly configured to manage dynamic links (accepting network traffic from any IP address) without network payload encryption, the validation architecture implicitly trusts the link ID provided within incoming data packets. A remote, unauthenticated attacker can exploit this lack of validation by spoofing a legitimate link ID inside crafted network frames. This allows the attacker to fully bypass the ACL framework and inject arbitrary data packets into the application layer, potentially leading to data corruption or service instabilities.
CVSS v3.1
Score 4.8medium
Affected software
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Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-07-15T10:39:01.541Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-15812","vendor":"Red Hat"}]
Threat ID: 6a5f06c72a4a8d59899adb68
Added to database: 07/21/2026, 05:42:31 UTC
Last enriched: 07/21/2026, 05:57:00 UTC
Last updated: 09/02/2026, 10:52:07 UTC
Views: 70
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