Simple OAuth (OAuth2) & OpenID Connect - Moderately critical - Access bypass - SA-CONTRIB-2026-242 (CVE-2026-114542)
Published Last modified Sources: BSI, CVE.org, OSV
What is affected, what to do
Use of Web Browser Cache Containing Sensitive Information vulnerability in Drupal Simple OAuth (OAuth2) & OpenID Connect allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Simple OAuth (OAuth2) & OpenID Connect versions: from 6.1.0 to 6.1.3.
Update Drupal Simple OAuth (OAuth2) & OpenID Connect to version 6.1.3.
- Affected
- Drupal Simple OAuth (OAuth2) & OpenID Connect
lt 6.1.0..6.1.3
- Drupal Simple OAuth (OAuth2) & OpenID Connect
- Fixed in
- Drupal Simple OAuth (OAuth2) & OpenID Connect
6.1.3
- Drupal Simple OAuth (OAuth2) & OpenID Connect
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Metrics
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Priority
No value is available for this vulnerability.
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CVSS v3
No value is available for this vulnerability.
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EPSS score
No value is available for this vulnerability.
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- Severity
- Not rated
Priority (0–325)
The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?
Read in glossary- 30.00 Methodology
Exploit maturity
An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.
Read in glossary- no public PoC known
KEV status
The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.
Read in glossary- —
- Published
CWE
CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.
Read in glossary- CWE-525
Detection rules
No NEOSEC detection rule is available for this vulnerability yet.
Classification under NIS2 and CRA
Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.
NIS2
NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.
Read in glossary- Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
CRA
The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.
Read in glossary- From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001
ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.
Read in glossary- Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.
Description
Use of Web Browser Cache Containing Sensitive Information vulnerability in Drupal Simple OAuth (OAuth2) & OpenID Connect allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Simple OAuth (OAuth2) & OpenID Connect versions: from 6.1.0 to 6.1.3.
Source: BSI WID Portal, cvelistv5, NVD (NIST), CVE.org (MITRE), OSV (Open Source Vulnerabilities), BSI CSAF
Affected products
The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.
| Affected versions | Fixed in | ||
|---|---|---|---|
| Drupal | Simple OAuth (OAuth2) & OpenID Connect |
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| Open Source | Drupal Domain Login Restrict |
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| Open Source | Drupal Simple OAuth |
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| Open Source | Drupal View Unpublished |
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| packagist:https://packages.drupal.org/8 | drupal/simple_oauth |
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Vendors and products
Weakness classes (CWE)
CWE-525Use of Web Browser Cache Containing Sensitive Information
Variant
The web application does not use an appropriate caching policy that specifies the extent to which each web page and associated form fields should be cached.
Entry at MITRE CWE-525
References & sources
- drupal.orgsa-contrib-2026-242web
Changes to this CVE
Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).
Receiveddrupal.org
Weakness type: CWE-525
Description added or changed
New references:Show 4 original changes
Individual changes of this event as published by NVD Type Action Before After Description added —Use of Web Browser Cache Containing Sensitive Information vulnerability in Drupal Simple OAuth (OAuth2) & OpenID Connect allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Simple OAuth (OAuth2) & OpenID Connect versions: from 6.1.0 to 6.1.3.Weakness type (CWE) added —CWE-525Affected versions (publisher) added —New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/114xxx/CVE-2026-114542.json">CVE-2026-114542</a>Reference added —https://www.drupal.org/sa-contrib-2026-242Source identifier: mlhess@drupal.org
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<a href="https://intel.neosec.eu/en/cve/CVE-2026-114542"><img src="https://intel.neosec.eu/badge/cve/CVE-2026-114542.svg?lang=en" alt="CVE-2026-114542 – NEOSEC Intel" height="20"></a>