VulnerabilityPublished 6 Aug 2026

CVE-2026-15599: TÜBİTAK BİLGEM Software Technologies Research Institute pardus-domain-joiner · Unverified Ownership

Affects TÜBİTAK BİLGEM Software Technologies Research Institute pardus-domain-joinerSource CVE Database V5

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Not known to be exploited · CVSS 3.3 Low : upgrade to 0.5.5 when convenient.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score

3.3Low

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 0.5.5

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

Attack Vector: Local
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Local: The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 6 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-6cpw-v4wr-4622

What to do

Upgrade pardus-domain-joiner and pardus/pardus-domain-joiner to 0.5.5.

Affected software

Product	Affected	Fixed in
TÜBİTAK BİLGEM Software Technologies Research Institutepardus-domain-joiner	Affected <0.5.5	Fixed in 0.5.5
Parduspardus/pardus-domain-joiner`pkg:deb/pardus/pardus-domain-joiner`Other threats	Affected <0.5.5	Fixed in 0.5.5

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, restrict local access to trusted users only and monitor for suspicious privilege abuse related to pardus-domain-joiner.

Description

CVE-2026-15599 is an unverified ownership vulnerability in the pardus-domain-joiner software developed by TÜBİTAK BİLGEM Software Technologies Research Institute. This flaw allows privilege abuse due to improper verification of ownership. It affects versions prior to 0.5.5. The vulnerability has a low severity rating with a CVSS score of 3.3 and does not impact confidentiality or integrity but may affect availability.

Impact

The vulnerability allows an attacker with local access and low privileges to abuse privileges, potentially causing a denial of service or availability impact. There is no impact on confidentiality or integrity. The overall severity is low.

Summary

The vulnerability identified as CVE-2026-15599 involves unverified ownership in the pardus-domain-joiner software, which can lead to privilege abuse. This issue is classified under CWE-283 (Improper Verification of Ownership). It affects all versions before 0.5.5 of pardus-domain-joiner. The CVSS 3.1 vector indicates the attack requires local access with low complexity and low privileges, no user interaction is needed, and the impact is limited to availability. There is no vendor advisory or patch currently available to address this vulnerability.

CWE-283Unverified Ownership (opens in a new tab)
Base weaknessOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product does not properly verify that a critical resource is owned by the proper entity.
Architecture and Design · Operation
Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
Architecture and Design · Separation of Privilege
Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.
OWASP Cheat Sheets
Docker Security (opens in a new tab)
Third Party Javascript Management (opens in a new tab)
Virtual Patching (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V1.4.4 (opens in a new tab)
V1.4.5 (opens in a new tab)
V1.10.1 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0770 (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 13 Aug 2026, 17:17 UTC

WeaknessesCWE-283

Technical details

References

Community reviews

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