GCVE-1-2026-20083 (CVE-2026-10861)

Vulnerability from gna-1 – Published: 2026-06-04 13:24 – Updated: 2026-06-04 13:26 X_Open Source
VLAI
Title
MISP post-login open redirect via pre_login_requested_url
Summary
An open redirect vulnerability existed in MISP UsersController::routeafterlogin() because the value stored in the pre_login_requested_url session key was used as the post-login redirect destination without sufficiently enforcing that it was a local application path. An unauthenticated remote attacker could craft a link that causes a victim to visit a trusted MISP instance and, after successful authentication, be redirected to an attacker-controlled external URL. This could be abused to increase the credibility of phishing attacks, redirect users to counterfeit login pages, or deliver attacker-controlled content from an untrusted domain. CWE-601 describes this weakness as accepting user-controlled input that specifies an external link and using it in a redirect, with phishing as a common consequence. The patch mitigates the issue by decoding and parsing the URL, rejecting URLs with a scheme, host, user component, missing or non-local path, and protocol-relative forms such as //example.com and /\example.com.
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
Impacted products
Vendor Product Version
misp misp Affected: 0 , ≤ 2.5.38 (semver)
Create a notification for this product.
Credits
Andras Iklody (the Insomniac MISP lead dev) 🕵️‍♂️ Jeroen Pinoy 🐞

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          "product": "misp",
          "vendor": "misp",
          "versions": [
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              "lessThanOrEqual": "2.5.38",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
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      "credits": [
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          "lang": "en",
          "type": "remediation developer",
          "value": "Andras Iklody"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Jeroen Pinoy"
        }
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "providerUrgency": "GREEN",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/U:Green",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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              "type": "CWE"
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      "providerMetadata": {
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      "references": [
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          "url": "https://github.com/MISP/MISP/commit/ae760b7bf534f2798810d59a1f961b31adb3443e"
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      "source": {
        "discovery": "UNKNOWN"
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      "tags": [
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      "title": "MISP post-login open redirect via pre_login_requested_url",
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    "cveId": "CVE-2026-10861",
    "datePublished": "2026-06-04T13:24:46.311258Z",
    "dateUpdated": "2026-06-04T13:26:10.929321Z",
    "requesterUserId": "00000000-0000-4000-9000-000000000000",
    "serial": 1,
    "state": "PUBLISHED",
    "vulnId": "gcve-1-2026-20083"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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