CVE-2026-41054

In `src/havegecmd.c`, the `socket_handler` function performs a credential check on the abstract UNIX socket (`\0/sys/entropy/haveged`). However, while it detects if the connecting user is not root (`cred.uid != 0`) and prepares a negative acknowledgement (`ASCII_NAK`), it **fails to stop execution**. The code proceeds to the `switch` statement, allowing any local unprivileged user to execute privileged commands such as `MAGIC_CHROOT`.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-41054
http://www.openwall.com/lists/oss-security/2026/05/19/3
http://www.openwall.com/lists/oss-security/2026/05/19/4
http://www.openwall.com/lists/oss-security/2026/05/19/5
http://www.openwall.com/lists/oss-security/2026/05/20/1
http://www.openwall.com/lists/oss-security/2026/05/21/17
http://www.openwall.com/lists/oss-security/2026/05/22/1
https://lists.debian.org/debian-lts-announce/2026/06/msg00005.html

Configurations

No configuration.

History

No history.

Information

Published : 2026-05-20 10:16

Updated : 2026-07-24 10:10

NVD link : CVE-2026-41054

Mitre link : CVE-2026-41054

CVE.ORG link : CVE-2026-41054

JSON object : View

Products Affected

No product.

CWE

CWE-305

Authentication Bypass by Primary Weakness

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{"vendor": "SUSE", "product": "SUSE Linux Enterprise Server for SAP Applications 15 SP6", "versions": [{"status": "affected", "version": "?", "lessThan": "1.9.14-150600.11.6.1", "versionType": "custom"}], "packageName": "haveged-devel", "defaultStatus": "unaffected"}, {"vendor": "SUSE", "product": "SUSE Linux Enterprise Server for SAP Applications 15 SP6", "versions": [{"status": "affected", "version": "?", "lessThan": "1.9.14-150600.11.6.1", "versionType": "custom"}], "packageName": "libhavege2", "defaultStatus": "unaffected"}, {"vendor": "SUSE", "product": "SUSE Manager Proxy LTS 4.3", "versions": [{"status": "affected", "version": "?", "lessThan": "1.9.14-150400.3.11.1", "versionType": "custom"}], "packageName": "haveged", "defaultStatus": "unaffected"}, {"vendor": "SUSE", "product": "SUSE Manager Proxy LTS 4.3", "versions": [{"status": "affected", "version": "?", "lessThan": "1.9.14-150400.3.11.1", "versionType": "custom"}], "packageName": "haveged-devel", "defaultStatus": "unaffected"}, {"vendor": "SUSE", "product": "SUSE Manager Proxy LTS 4.3", "versions": [{"status": "affected", "version": "?", "lessThan": "1.9.14-150400.3.11.1", "versionType": "custom"}], "packageName": "libhavege2", "defaultStatus": "unaffected"}, {"vendor": "SUSE", "product": "SUSE Manager Retail Branch Server LTS 4.3", "versions": [{"status": "affected", "version": "?", "lessThan": "1.9.14-150400.3.11.1", "versionType": "custom"}], "packageName": "haveged", "defaultStatus": "unaffected"}, {"vendor": "SUSE", "product": "SUSE Manager Retail Branch Server LTS 4.3", "versions": [{"status": "affected", "version": "?", "lessThan": "1.9.14-150400.3.11.1", "versionType": "custom"}], "packageName": "haveged-devel", "defaultStatus": "unaffected"}, {"vendor": "SUSE", "product": "SUSE Manager Retail Branch Server LTS 4.3", "versions": [{"status": "affected", "version": "?", "lessThan": "1.9.14-150400.3.11.1", "versionType": "custom"}], "packageName": "libhavege2", "defaultStatus": "unaffected"}, {"vendor": "SUSE", "product": "SUSE Manager Server LTS 4.3", "versions": [{"status": "affected", "version": "?", "lessThan": "1.9.14-150400.3.11.1", "versionType": "custom"}], "packageName": "haveged", "defaultStatus": "unaffected"}, {"vendor": "SUSE", "product": "SUSE Manager Server LTS 4.3", "versions": [{"status": "affected", "version": "?", "lessThan": "1.9.14-150400.3.11.1", "versionType": "custom"}], "packageName": "haveged-devel", "defaultStatus": "unaffected"}, {"vendor": "SUSE", "product": "SUSE Manager Server LTS 4.3", "versions": [{"status": "affected", "version": "?", "lessThan": "1.9.14-150400.3.11.1", "versionType": "custom"}], "packageName": "libhavege2", "defaultStatus": "unaffected"}]}], "published": "2026-05-20T10:16:26.990", "references": [{"url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-41054", "source": "meissner@suse.de"}, {"url": "http://www.openwall.com/lists/oss-security/2026/05/19/3", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2026/05/19/4", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2026/05/19/5", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2026/05/20/1", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2026/05/21/17", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2026/05/22/1", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2026/06/msg00005.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "meissner@suse.de", "description": [{"lang": "en", "value": "CWE-305"}]}], "descriptions": [{"lang": "en", "value": "In `src/havegecmd.c`, the `socket_handler` function performs a credential check on the abstract UNIX socket (`\\0/sys/entropy/haveged`). However, while it detects if the connecting user is not root (`cred.uid != 0`) and prepares a negative acknowledgement (`ASCII_NAK`), it **fails to stop execution**. The code proceeds to the `switch` statement, allowing any local unprivileged user to execute privileged commands such as `MAGIC_CHROOT`."}, {"lang": "es", "value": "En src/havegecmd.c , la funci\u00f3n socket_handler realiza una comprobaci\u00f3n de credenciales en el socket UNIX abstracto ( \\0/sys/entropy/haveged ). Sin embargo, aunque detecta si el usuario que se conecta no es root ( cred.uid != 0 ) y prepara un acuse de recibo negativo ( ASCII_NAK ), no detiene la ejecuci\u00f3n. El c\u00f3digo procede a la instrucci\u00f3n 'switch', permitiendo a cualquier usuario local sin privilegios ejecutar comandos privilegiados como MAGIC_CHROOT ."}], "lastModified": "2026-07-24T10:10:00.197", "sourceIdentifier": "meissner@suse.de"}