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CVE Record

CVE-2026-41054: Missing exit out of permission check in haveged could lead to root exploit

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`.

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2026-41054 is a local privilege escalation issue in haveged. A permission check notices a non-root user but does not stop processing, so an unprivileged local user may reach privileged command handling. This is not a remote internet-facing bug, but it is high impact on systems where attackers can obtain any local account or container shell. Exposure is most likely on Linux systems running a vulnerable haveged daemon with the control socket reachable by local users. The provided SUSE product entries are marked defaultStatus unaffected, so affected versions remain incomplete in this bundle. Validate distribution package advisories before assuming exposure. Prioritize remediation in normal high-severity Linux patch cycles, faster for shared servers, build hosts, containers, and systems with many local users. Business urgency is driven by root-level impact after local access, while evidence of active exploitation is not provided in the bundle. Mitigation focus: Check vendor advisories for confirmed affected and fixed haveged package versions.; Apply vendor-provided haveged or libhavege2 updates when available.; Review Debian LTS and SUSE guidance before changing production entropy services..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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CVE-2026-41054 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
2ADP providers
3Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9suse

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2026-41054Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
SUSEContainer suse/sle-micro-rancher/5.3:latesthaveged, ?unaffected
SUSEContainer suse/sle-micro-rancher/5.3:latestlibhavege2, ?unaffected
SUSEContainer suse/sle-micro-rancher/5.4:latesthaveged, ?unaffected
SUSEContainer suse/sle-micro-rancher/5.4:latestlibhavege2, ?unaffected
SUSEContainer suse/sle-micro/5.5:latesthaveged, ?unaffected
SUSEContainer suse/sle-micro/5.5:latestlibhavege2, ?unaffected
SUSEImage SLES15-SP4-SAP-BYOShaveged, ?unaffected
SUSEImage SLES15-SP4-SAP-BYOSlibhavege2, ?unaffected
SUSEImage SLES15-SP4-SAP-BYOS-Azurehaveged, ?unaffected
SUSEImage SLES15-SP4-SAP-BYOS-Azurelibhavege2, ?unaffected
SUSEImage SLES15-SP4-SAP-BYOS-EC2haveged, ?unaffected
SUSEImage SLES15-SP4-SAP-BYOS-EC2libhavege2, ?unaffected
SUSEImage SLES15-SP4-SAP-BYOS-GCEhaveged, ?unaffected
SUSEImage SLES15-SP4-SAP-BYOS-GCElibhavege2, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardenedhaveged, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardenedlibhavege2, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardened-BYOShaveged, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardened-BYOSlibhavege2, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardened-BYOS-Azurehaveged, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardened-BYOS-Azurelibhavege2, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardened-BYOS-EC2haveged, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardened-BYOS-EC2libhavege2, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardened-BYOS-GCEhaveged, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardened-BYOS-GCElibhavege2, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardened-GCEhaveged, ?unaffected
SUSEImage SLES15-SP4-SAP-Hardened-GCElibhavege2, ?unaffected
SUSESUSE Linux Enterprise Desktop 15 SP7haveged, ?unaffected
SUSESUSE Linux Enterprise Desktop 15 SP7haveged-devel, ?unaffected
SUSESUSE Linux Enterprise Desktop 15 SP7libhavege2, ?unaffected
SUSESUSE Linux Enterprise High Performance Computing 15 SP7haveged, ?unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-305 · source CWE mapping

Authentication Bypass by Primary Weakness

Authentication Bypass by Primary Weakness represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.