FKIE_CVE-2026-30964

Vulnerability from fkie_nvd - Published: 2026-03-10 18:18 - Updated: 2026-05-07 18:35
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Summary
web-auth/webauthn-lib is an open source set of PHP libraries and a Symfony bundle to allow developers to integrate that authentication mechanism into their web applications. Prior to 5.2.4, when allowed_origins is configured, CheckAllowedOrigins reduces URL-like values to their host component and accepts on host match alone. This makes exact origin policies impossible to express: scheme and port differences are silently ignored. This vulnerability is fixed in 5.2.4.
References
security-advisories@github.comhttps://github.com/web-auth/webauthn-framework/commit/535cc3c2dcbd9c3dfd5e00a254ad4a984e5e7839Patch
security-advisories@github.comhttps://github.com/web-auth/webauthn-framework/commit/b4cd9a4394c35fcac6080fd2f84f4f58a30abc01Patch
security-advisories@github.comhttps://github.com/web-auth/webauthn-framework/security/advisories/GHSA-f7pm-6hr8-7ggmExploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/web-auth/webauthn-framework/security/advisories/GHSA-f7pm-6hr8-7ggmExploit, Vendor Advisory
Impacted products
Vendor Product Version
spomky-labs webauthn-lib *
spomky-labs webauthn-symfony-bundle *
spomky-labs webauthn_framwork *
To clipboard 

{
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    {
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              "matchCriteriaId": "2B3FDA39-7E8E-4393-B618-705FC6E261B5",
              "versionEndExcluding": "5.2.4",
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      "value": "web-auth/webauthn-lib is an open source set of PHP libraries and a Symfony bundle to allow developers to integrate that authentication mechanism into their web applications. Prior to 5.2.4, when allowed_origins is configured, CheckAllowedOrigins reduces URL-like values to their host component and accepts on host match alone. This makes exact origin policies impossible to express: scheme and port differences are silently ignored. This vulnerability is fixed in 5.2.4."
    },
    {
      "lang": "es",
      "value": "web-auth/webauthn-lib es un conjunto de c\u00f3digo abierto de bibliotecas PHP y un paquete de Symfony para permitir a los desarrolladores integrar ese mecanismo de autenticaci\u00f3n en sus aplicaciones web. Antes de la versi\u00f3n 5.2.4, cuando se configura allowed_origins, CheckAllowedOrigins reduce los valores similares a URL a su componente de host y acepta solo la coincidencia de host. Esto hace que las pol\u00edticas de origen exactas sean imposibles de expresar: las diferencias de esquema y puerto se ignoran silenciosamente. Esta vulnerabilidad se corrige en la versi\u00f3n 5.2.4."
    }
  ],
  "id": "CVE-2026-30964",
  "lastModified": "2026-05-07T18:35:56.327",
  "metrics": {
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      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
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  "vulnStatus": "Analyzed",
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          "value": "CWE-346"
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      "source": "security-advisories@github.com",
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}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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