High severity · published May 20, 2026
CVE-2026-41054
Missing exit out of permission check in haveged could lead to root exploit
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CS
Container suse/sle-micro-rancher/5.3:latest · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
CS
Container suse/sle-micro-rancher/5.4:latest · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
CS
Container suse/sle-micro/5.5:latest · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
IS
Image SLES15-SP4-SAP-BYOS · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
IS
Image SLES15-SP4-SAP-BYOS-Azure · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
IS
Image SLES15-SP4-SAP-BYOS-EC2 · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
IS
Image SLES15-SP4-SAP-BYOS-GCE · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
IS
Image SLES15-SP4-SAP-Hardened · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
IS
Image SLES15-SP4-SAP-Hardened-BYOS · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
IS
Image SLES15-SP4-SAP-Hardened-BYOS-Azure · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
IS
Image SLES15-SP4-SAP-Hardened-BYOS-EC2 · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
IS
Image SLES15-SP4-SAP-Hardened-BYOS-GCE · SUSE
? before 1.9.14-150400.3.11.1; ? before 1.9.14-150400.3.11.1 · source: vendor
Affected product
CS
Container suse/sle-micro-rancher/5.3:latest
SUSE
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41054
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41054
bugzilla.suse.com
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-41054
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/05/19/3
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/05/19/4
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/05/19/5
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/05/20/1
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/05/21/17