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Pardus About CVE-2026-8304

| EUVDEUVD-2026-76140 MEDIUM
Missing Authorization (CWE-862)
2026-09-11 TR-CERT GHSA-6rg9-qq5j-wggv
5.5
CVSS 3.1 · Vendor: TR-CERT
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain low-privileged local account
  2. Exploit
    Launch Pardus About application
  3. Execution
    Trigger missing authorization path
  4. Impact
    Read sensitive restricted system data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires a valid local user account on a Pardus Linux system with Pardus About installed at a version between 1.2.1 and 1.2.4 inclusive. The attacker must be able to execute the Pardus About application in a local session. No network access, special configuration, elevated account, or interaction from another user is required beyond a low-privileged local login. Exploitation is entirely limited to local attack surface (AV:L); systems where no untrusted users hold local accounts are not at meaningful risk.

Impact

The CVSS 3.1 score of 5.5 (Medium) reflects a local-only attack surface (AV:L), low privilege requirement (PR:L), and high confidentiality impact (C:H) with no integrity or availability consequences - the overall profile of a local authorization bypass that leaks sensitive read-only information. No EPSS probability, KEV listing, or proof-of-concept has been provided or identified at time of analysis, which significantly limits urgency relative to remotely exploitable issues. The threat is bounded to systems where untrusted users hold local accounts, meaning single-user workstations or tightly controlled kiosks carry negligible risk. The 'Authentication Bypass' tag applied to this CVE is a mislabel; CWE-862 is a missing authorization check after authentication has already occurred, not a bypass of the authentication mechanism itself. Patching to 1.2.5 is the appropriate response during routine maintenance cycles; there is no signal justifying emergency response.

Exploit ScenarioDerived

A local user with a standard unprivileged account on a Pardus Linux system running an affected version of Pardus About launches the application and, due to absent authorization enforcement, accesses sensitive system or configuration data that should be visible only to privileged users. No network access, additional credentials, or interaction from a privileged user is needed. No public proof-of-concept has been identified at time of analysis.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 11, 2026

Local information disclosure in Pardus About (versions 1.2.1 through 1.2.4) allows a low-privileged local user to read sensitive system data that should be restricted to higher-privileged users. The root cause is missing authorization checks (CWE-862) in the desktop information viewer component of the Pardus Linux distribution, developed by TUBITAK BILGEM. TR-CERT disclosed the issue with a fix available in version 1.2.5; no public exploit code or CISA KEV listing has been identified.

RemediationAI

Upgrade Pardus About to version 1.2.5 or later, which resolves the missing authorization flaw per the TR-CERT advisory at https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1082. If immediate patching is not possible, restricting local user account provisioning on multi-user Pardus systems reduces exposure by shrinking the pool of potential exploiters; however, this is a compensating control and not a substitute for the patch. Standard package management (apt or the Pardus package manager) should deliver the update through official Pardus repositories.

Affected VersionsENISA

Pardus About 1.2.1 <1.2.5

Affected Packages

euvd pardus_about fix: 1.2.5

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Pardus About is a desktop application shipped as part of Pardus, a Linux distribution developed by TUBITAK BILGEM (the Scientific and Technological Research Council of Turkey's Informatics and Information Security Research Center), primarily for Turkish government and educational deployments. The flaw is classified as CWE-862 (Missing Authorization): the application performs privileged read operations or exposes sensitive data without verifying that the requesting user holds sufficient permissions, despite the user being authenticated. The CPE cpe:2.3:a:tubitak_bilgem_software_technologies_research_institute:pardus_about:*:*:*:*:*:*:*:* confirms this is an application-layer component. The CVSS vector AV:L/PR:L indicates that a standard unprivileged local account is the exploitation entry point, consistent with a GUI application that does not enforce OS-level permission boundaries on data it surfaces.

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Severity by source

Vendor (TR-CERT) PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
vuln.today AI 5.5 MEDIUM

Local low-privileged user bypasses missing authorization to read sensitive data; no integrity or availability impact is established.

3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (TR-CERT).

CVSS VectorVendor: TR-CERT

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

Lifecycle Timeline

1
Patch available
Sep 11, 2026 - 17:17 EUVD

DescriptionCVE.org

Missing Authorization vulnerability in TUBITAK BILGEM Software Technologies Research Institute Pardus About allows Exploiting Incorrectly Configured Access Control Security Levels.

This issue affects Pardus About: from 1.2.1 before 1.2.5.

Threat Intelligence Overview

EPSS Score
0.1%
Top 99% exploitable
Prevalence
Low
Turkish government/education Linux distro, limited international deployment
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

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