Common Weakness Enumeration

CWE-178

Allowed

Improper Handling of Case Sensitivity

Abstraction: Base · Status: Incomplete

The product does not properly account for differences in case sensitivity when accessing or determining the properties of a resource, leading to inconsistent results.

221 vulnerabilities reference this CWE, most recent first.

CVE-2026-114132 (GCVE-0-2026-114132)

Vulnerability from cvelistv5 – Published: 2026-10-21 17:50 – Updated: 2026-10-23 15:10
VLAI
Title
Nuxt: Server-side route rules (`redirect`, `headers`, `proxy`, `ssr`) are skipped for case-variant paths when routing is case-insensitive
Summary
Nuxt is an open-source web development framework for Vue.js. Prior to 4.6.2, Nuxt resolves pages case-insensitively by default while Nitro matches server-side route-rule keys case-sensitively, allowing a request whose path differs only by letter case to render without the server rule intended for that page. The mismatch can skip redirect, headers, proxy, ssr: false, and noScripts, and can cause getRouteRules(event) and matchRouteRules to return no rule for the case variant. Applications that set router.options.sensitive: true in nuxt.config are not affected; setting sensitive only in app/router.options.ts does not establish this exclusion because the server follows the nuxt.config value. Access checks implemented in server middleware, page route middleware, or page data fetching remain independent of this matcher. This issue is fixed in version 4.6.2.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-23 14:47 UTC
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
  • CWE-863 - Incorrect Authorization
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
Impacted products
Vendor Product Version
nuxt nuxt Affected: < 4.6.2
Create a notification for this product.
Show details on NVD website

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CVE-2026-111448 (GCVE-0-2026-111448)

Vulnerability from cvelistv5 – Published: 2026-10-16 03:41 – Updated: 2026-10-16 15:00
VLAI
Summary
Wheels 4.0.0 through 4.1.2 uses case-insensitive comparisons in path-containment checks on case-sensitive filesystems. Canonical-path checks for zip entries, package mappings, development assets/docs, guide images and image tags can accept paths through an existing symlink to a case-distinct sibling directory, allowing access outside the intended root, including limited file disclosure. Separately, the CLI database-dump output check can write outside the application root to an existing writable case-distinct sibling directory; that action requires the CLI POST, loopback and password gate. This is fixed in 4.2.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 14:59 UTC
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2337 records in the last 180 days details
References
Impacted products
Vendor Product Version
Wheels Wheels Affected: 4.0.0 , < 4.2.0 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-109841 (GCVE-0-2026-109841)

Vulnerability from cvelistv5 – Published: 2026-10-15 18:22 – Updated: 2026-10-16 20:04
VLAI
Title
undici vulnerable to Subresource Integrity bypass via non-lowercase algorithm tokens
Summary
undici is an HTTP client library for Node.js. In versions 7.15.0 through 7.30.0 and 8.0.0 through 8.12.1, its fetch() implementation verifies Subresource Integrity metadata by matching the algorithm token against a lowercase-only set, even though the SRI specification defines the token by its ASCII-lowercase form, so a valid but non-lowercase token such as an uppercase or mixed-case SHA256 is treated as unknown and skipped. When no recognized algorithm remains, undici treats the integrity list as empty and accepts the response, so a server returning a body that does not match the pinned digest passes the check. An attacker who controls only the response body can therefore deliver attacker-controlled bytes to an application that pinned a valid uppercase or mixed-case SRI token, with no integrity error, affecting response integrity only. The issue is fixed in undici 7.30.1 and 8.12.2, which normalize the algorithm token to ASCII lowercase before validation, and users should upgrade to one of those versions or later. As a workaround, use lowercase algorithm tokens such as sha256, sha384, or sha512 in integrity metadata.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 20:04 UTC
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
Assigner
openjs CNA under the redhat root
CNA scorecard C 65/100 over 119 records in the last 180 days details
Impacted products
Vendor Product Version
undici undici Affected: 7.15.0 , < 7.30.1 (semver)
Unaffected: 7.30.1 (semver)
Affected: 8.0.0 , < 8.12.2 (semver)
Unaffected: 8.12.2 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-108721 (GCVE-0-2026-108721)

Vulnerability from cvelistv5 – Published: 2026-10-11 12:19 – Updated: 2026-10-13 17:01
VLAI
Title
Open Computer Use through 1.0.0 Denylist Bypass via Case-Variant Bundle ID
Summary
Open Computer Use through 1.0.0 on macOS contains an improper case sensitivity handling vulnerability that allows local MCP callers to bypass the password-manager denylist using case-variant bundle identifiers. Attackers, including prompt-injected model turns, can pass identifiers like com.1Password.1Password to get_app_state and action tools to read accessibility trees, capture screenshots, and drive unlocked password manager interfaces.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 15:49 UTC
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6828 records in the last 180 days details
Impacted products
Vendor Product Version
iFurySt open-computer-use Affected: 0 , ≤ 1.0.0 (semver)
Create a notification for this product.
Date Public
2026-10-10 00:00
Show details on NVD website

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CVE-2026-107832 (GCVE-0-2026-107832)

Vulnerability from cvelistv5 – Published: 2026-10-13 13:23 – Updated: 2026-10-15 19:14
VLAI
Title
fastify vulnerable to header validation bypass via case-sensitive propertyNames
Summary
fastify is a fast and low overhead web framework for Node.js. In versions 5.12.2 through 5.12.5, the routine that lowercases header names declared in a route schema does not lowercase the enum or const header names nested inside a propertyNames subschema. As a result, a header allow-list or deny-list written with canonical (non-lowercase) casing never matches the incoming lowercased header, so a restricted header passes validation and reaches the route handler. An attacker can therefore bypass a case-sensitive header validation rule and smuggle a forbidden header past the schema, affecting the integrity of request handling. The issue is fixed in fastify 5.12.6, and users should upgrade to 5.12.6 or later. There is no workaround other than upgrading, though applications can declare header names in lowercase to avoid the mismatch.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 17:34 UTC
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
Assigner
openjs CNA under the redhat root
CNA scorecard C 65/100 over 119 records in the last 180 days details
Impacted products
Vendor Product Version
fastify fastify Affected: 5.12.2 , < 5.12.6 (semver)
Unaffected: 5.12.6 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-107381 (GCVE-0-2026-107381)

Vulnerability from cvelistv5 – Published: 2026-10-14 14:53 – Updated: 2026-10-18 13:36
VLAI
Title
svg-sanitizer: Mixed-case xlink:HrEf skips the `<use>` nesting-DoS check in Resolver::processReferences
Summary
svg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, Resolver::processReferences() in src/ElementReference/Resolver.php builds the SVG <use> reference graph with a case-sensitive href attribute predicate before cleanHrefAttributes() normalizes mixed-case names. An attacker can provide xlink:HrEf on nested <use> elements so the graph omits those references, after which the sanitizer converts the attribute to canonical xlink:href and returns the live nesting structure without applying the useNestingLimit protection. A consuming application that renders the sanitized SVG can therefore be exposed to the resource exhaustion that control is designed to prevent. This issue is fixed in version 1.0.0.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-18 13:36 UTC
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
Impacted products
Show details on NVD website

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CVE-2026-106503 (GCVE-0-2026-106503)

Vulnerability from cvelistv5 – Published: 2026-10-06 21:37 – Updated: 2026-10-09 01:55
VLAI
Title
Backstage: Scaffolder action input authorization bypass
Summary
Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by scaffolder action input authorization bypass. An authenticated user with access to affected Scaffolder templates could bypass configured action restrictions. Depending on integration credentials, this could grant unauthorized access to repositories and related source-control resources. This issue is fixed in versions 3.3.1, 3.4.1, 4.0.3 and 4.1.0.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 01:55 UTC
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
  • CWE-284 - Improper Access Control
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
Impacted products
Vendor Product Version
backstage backstage Affected: < 1.49.6
Affected: >= 1.50.0-next.0, < 1.50.5
Affected: >= 1.51.0-next.0, < 1.54.6
Create a notification for this product.
@backstage plugin-scaffolder-backend Affected: < 3.3.1
Affected: >= 3.4.0, < 3.4.1
Affected: >= 4.0.0, < 4.0.3
Affected: >= 4.0.4, < 4.1.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-106497 (GCVE-0-2026-106497)

Vulnerability from cvelistv5 – Published: 2026-10-06 21:18 – Updated: 2026-10-07 16:19
VLAI
Title
Backstage: Inconsistent catalog property permission evaluation
Summary
Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent catalog property permission evaluation. In deployments that use affected value-based catalog permission conditions as a confidentiality boundary, an authenticated user could receive catalog entity data that policy authors intended to restrict. This issue is fixed in version 3.9.1.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 16:19 UTC
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
  • CWE-863 - Incorrect Authorization
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
Impacted products
Show details on NVD website

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CVE-2026-105570 (GCVE-0-2026-105570)

Vulnerability from cvelistv5 – Published: 2026-10-08 18:46 – Updated: 2026-10-08 19:28
VLAI
Title
Docker Sandboxes OAuth response masking could be bypassed with a case-variant token host
Summary
Docker Sandboxes compared OAuth token-endpoint hostnames case-sensitively when deciding whether to mask managed credential responses, while request routing treated DNS hostnames case-insensitively. Untrusted code inside a sandbox could use a case-variant hostname to reach the genuine provider endpoint while bypassing response masking. If a user completed the OAuth flow, the provider's access and refresh tokens could be returned unmasked to the sandbox, exposing host-managed credentials.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:28 UTC
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
Assigner
Docker CNA under the mitre root
CNA scorecard B 88/100 over 33 records in the last 180 days details
References
Impacted products
Vendor Product Version
Docker Docker Sandboxes Affected: 0.21.0 , < 0.47.0 (semver)
    cpe:2.3:a:docker:docker_sandboxes:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-102131 (GCVE-0-2026-102131)

Vulnerability from cvelistv5 – Published: 2026-09-30 20:13 – Updated: 2026-10-01 13:37
VLAI
Title
Kiteworks Email Protection Gateway Improper Handling of Case Sensitivity
Summary
Kiteworks Email Protection Gateway rejected certain configuration settings, but its validation did not recognize every form in which they could be supplied. An authenticated administrator could potentially use an unrecognized form to have a file of their choosing written to the gateway and executed, resulting in code execution as the gateway service account.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:28 UTC
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
  • CWE-178 - Improper Handling of Case Sensitivity
Assigner
cisa-cg CNA under the CISA root
CNA scorecard B 76/100 over 132 records in the last 180 days details
References
Impacted products
Vendor Product Version
Kiteworks Email Protection Gateway Affected: 0 , < 9.5.0 (custom)
Unaffected: 9.5.0
Create a notification for this product.
Date Public
2026-09-30 00:00
Show details on NVD website

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Mitigation MIT-44
Architecture and Design

Strategy: Input Validation

Avoid making decisions based on names of resources (e.g. files) if those resources can have alternate names.

Mitigation MIT-5
Implementation

Strategy: Input Validation

  • Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
  • When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
  • Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
Mitigation MIT-20
Implementation

Strategy: Input Validation

Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.

No CAPEC attack patterns related to this CWE.