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disconf CVE-2026-75338

| EUVDEUVD-2026-66815 CRITICAL
Improper Access Control (CWE-284)
2026-08-26 cve@mitre.org GHSA-3w5f-m72v-wjf2
9.8
CVSS 3.1 · Vendor: mitre
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Attack ChainAIDerived

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

  1. Access
    Discover exposed disconf API
  2. Delivery
    GET /api/config/list to enumerate apps
  3. Exploit
    Fetch /api/config/file and /api/config/item unauthenticated
  4. Execution
    Extract embedded credentials and keys
  5. Impact
    Reuse secrets for lateral movement

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

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

Exploitation Conditions

Exploitation requires only network reachability to a disconf 2.6.36 config center; the four endpoints (/api/config/item, /api/config/file, /api/config/list, /api/config/simple/list) are unauthenticated by design of the LoginInterceptor whitelist, so no credentials, tokens, user interaction, or special client configuration are needed against a default 2.6.36 deployment. The primary limiting factor is exposure and footprint: the attacker must be able to reach the disconf API (internet-facing or attacker on the same internal network), and the value of the compromise depends on what secrets a given deployment stores in its configs. There is no version-specific or feature-flag prerequisite beyond running the affected disconf build with these endpoints served.

Impact

The raw CVSS of 9.8 (AV:N/AC:L/PR:N/UI:N with C:H/I:H/A:H) overstates direct impact: the described behavior is unauthenticated read of configuration, which is a confidentiality breach, not integrity or availability loss, so the I:H/A:H components are not supported by the description and my independent assessment is 7.5 (confidentiality-only). That said, the exposure is genuinely serious because leaked configs typically contain downstream credentials that enable follow-on compromise, and SSVC flags it as Automatable=yes with Technical Impact=total, meaning it can be trivially and reliably mass-scanned. The tension in the signals is that EPSS is low (0.17%, 6th percentile) and there is no KEV listing, so this is not confirmed as broadly weaponized yet - but a public PoC exists and the attack is a single unauthenticated GET, so any operator running disconf should treat it as high priority regardless of the modest EPSS. In short: high-CVSS with a real, easily automated exploitation path, tempered only by the niche footprint of the product and absence of confirmed active exploitation.

Exploit ScenarioDerived

An attacker discovers an internet-exposed disconf instance and issues an unauthenticated GET to /api/config/list to enumerate managed applications, then pulls /api/config/file and /api/config/item to dump full configuration contents including embedded database credentials and API keys. A public PoC/write-up exists, and given AV:N/AC:L/PR:N the attacker needs no account, no user interaction, and only a single HTTP request per endpoint, making the harvested secrets immediately usable for lateral movement into backend systems.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Aug 27, 2026

Unauthenticated configuration disclosure in Baidu disconf 2.6.36 lets any anonymous network attacker read every configuration item and file managed by the config center. The LoginInterceptor whitelists four config-fetching endpoints (/api/config/item, /api/config/file, /api/config/list, /api/config/simple/list), bypassing authentication entirely. SSVC records a public proof-of-concept and full technical impact; EPSS is currently low (0.17%, 6th percentile), and there is no public exploit identified as actively exploited in the wild.

RemediationAI

No vendor-released patch identified at time of analysis - disconf is a largely inactive/archived project, so a fixed release should not be assumed. Because the root cause is the LoginInterceptor whitelisting the four config-fetching endpoints, the most direct compensating control is to remove those paths (/api/config/item, /api/config/file, /api/config/list, /api/config/simple/list) from the authentication whitelist so they require a valid session; this restores intended access control but must be tested since some client-side config polling may rely on anonymous access and could break. If code changes are not feasible, place disconf behind a reverse proxy or network ACL that requires authentication or restricts the /api/config/* endpoints to trusted client IP ranges only, and never expose the disconf console/API to the internet. As a defense-in-depth follow-up, rotate any secrets (database passwords, API keys) that may have been readable while the endpoints were exposed, since an attacker who already scraped them will retain access after the endpoint is locked down. Consult the write-up at https://github.com/fangtang7/CVE/blob/main/disconf/Unauthenticated.md and the VulDB advisory (https://vuldb.com/vuln/396030) for endpoint details.

Affected VersionsENISA

n/a n/a

Affects your stack

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

Technical ContextAI · show details

disconf (Distributed Configuration Management Platform) is a centralized service, originally open-sourced by Baidu, that stores and distributes application configuration to distributed clients. The flaw is CWE-284 (Improper Access Control): the LoginInterceptor, which is meant to enforce session authentication on API calls, explicitly whitelists the config-fetching REST endpoints. Because configuration centers by design aggregate secrets such as database DSNs, credentials, API keys, and connection strings, an access-control gap on the read APIs exposes the crown jewels of every onboarded application. No affected CPE is provided in the intelligence; only the EUVD entry (EUVD-2026-66815) exists, listing versions as 'n/a', so 2.6.36 from the description is the only concrete affected version.

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Severity by source

Vendor (mitre) PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 7.5 HIGH

Unauthenticated single-request read over the network gives AV:N/AC:L/PR:N/UI:N and C:H; the description shows only configuration disclosure, so I and A are N, not H.

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

Primary rating from Vendor (mitre).

CVSS VectorVendor: mitre

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

Lifecycle Timeline

3
CVSS changed
Aug 27, 2026 - 17:22 NVD
9.8 (CRITICAL)
CVE Published
Aug 26, 2026 - 23:17 cve.org
UNKNOWN (no severity yet)
CVE Published
Aug 26, 2026 - 23:17 cve.org
CRITICAL 9.8

DescriptionCVE.org

disconf (Distributed Configuration Management Platform) 2.6.36 is vulnerable to Incorrect Access Control. The config-fetching APIs /api/config/item, /api/config/file, /api/config/list and /api/config/simple/list are exposed without authentication. The LoginInterceptor explicitly whitelists these four paths, so any anonymous attacker can read every configuration item and configuration file managed by the config center.

Executive ViewAI

Why It Matters

Baidu disconf 2.6.36 contains a critical vulnerability allowing unauthenticated attackers to access all configuration data managed by the platform, potentially exposing API keys, credentials, and operational secrets. Organizations using affected versions face immediate risk of credential theft and unauthorized access to sensitive configuration parameters. No vendor patch is available, requiring urgent mitigation measures.

Business Impact: Severe
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: restrict network access to disconf instances using firewall rules, WAF policies, and network segmentation; disable or air-gap the affected system if feasible; implement detailed audit logging for all configuration access attempts; immediately rotate all credentials stored in disconf; consider temporary removal of sensitive data from configurations and storage in a separate secrets vault; maintain emergency response capability for credential compromise if unauthorized access has occurred.

Threat Intelligence Overview

EPSS Score
0.2%
Top 94% exploitable
Prevalence
Low
niche Baidu-origin config platform, largely inactive, limited enterprise footprint
Social Media
1
Sightings
Data Quality
7 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment CIRCL GitHub VulDB

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 CRITICAL
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
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
Out-of-Cycle
Exploitation
Poc
System Exposure· derived
Open
Automatable
Yes
Human Impact
Very High
Technical Impact
Total

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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