Medium Access control

CVE-2026-104618 — sdbootutil: world-readable debug log

On request the `sdbootutil` script creates a world-readable debug log in /var/log/sdbootutil.log. The log file is created world-readable, however, which means that arbitrary low-privileged users in the system will be able to extract secrets from it.

Published Oct 15, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: suse

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

—

No EPSS score.

Affects

Opensuse

Tumbleweed and 3 more

CVSS base

6.2

Medium · 2 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Partial

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Opensuse Tumbleweed, SUSE openSUSE Leap 16.1, SUSE SUSE Linux Enterprise Server 16.1…).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes matching the vulnerability class (access control), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Opensuse	Tumbleweed	≥ ? and < 278458aeb7d8f995c0e3dc9d19d2dcba50795a42	Vulnerable	CVE Program (cve.org) e CISA ADP
SUSE	openSUSE Leap 16.1	version ?	Vulnerable	CVE Program (cve.org) e CISA ADP
SUSE	SUSE Linux Enterprise Server 16.1	version ?	Vulnerable	CVE Program (cve.org) e CISA ADP
SUSE	SUSE Linux Enterprise Server for NVIDIA 16.1	version ?	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Local

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
6.9	CVSS 4.0	Medium	—	—	meissner@suse.de via NIST National Vulnerability Database
6.9	CVSS 4.0	Medium	—	—	suse via CVE Program (cve.org) e CISA ADP
6.2	CVSS 3.1	Medium	2.5	3.6	meissner@suse.de via NIST National Vulnerability Database
6.2	CVSS 3.1	Medium	—	—	suse via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (score shown at the top: meissner@suse.de)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-732 · Incorrect Permission Assignment for Critical Resource

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
Audit administrative actions and access to resources outside each user’s normal pattern.

endpoint telemetry (EDR)authentication logsapplication logs

Timeline

What happened to this CVE, newest first.

2026
SSVC assessment updated
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Affected products added · suse/suse linux enterprise server 16.1, suse/suse linux enterprise server for nvidia 16.1, suse/opensuse leap 16.1, open
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 15, 2026
CVSS changed · 6.2
Oct 15, 2026 · NIST National Vulnerability Database
Source status changed · → Received
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · Alertas do Telegram
CVE published
Oct 15, 2026 · suse

Source activity

Repeated readings are counted rather than listed.

1× References added · Oct 15, 2026 – Oct 15, 2026
1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

2 on the record

www.suse.com/security/cve/CVE-2026-104618.html
NIST National Vulnerability Database
bugzilla.suse.com/show_bug.cgi
NIST National Vulnerability Database

Elsewhere on this site

Opensuse
every CVE for this vendor

Access control
same class

CWE-732
other pages naming this weakness

Related CVEs (same products)

Medium CVE-2026-104617 sdbootutil: qrencode invocation leaks PIN/recovery key in /proc/<pid>/cmdline 8h
Medium CVE-2025-62875 Local DoS in OpenSMTPD via UNIX domain socket smtpd.sock Nov 20, 2025
Medium CVE-2025-53881 SUSE-specific logrotate configuration allows escalation from mail user/group to root Oct 2, 2025
Critical CVE-2015-3306 ProFTPD Improper Access Control Vulnerability KEV May 18, 2015

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No FIRST EPSS score.
No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-104618 is "sdbootutil: world-readable debug log", rated Medium. It affects Tumbleweed (Opensuse); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.2 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

Comments

Moderated technical discussion. Read the community guidelines.

No comments yet.