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FKIE_CVE-2026-52843

Vulnerability from fkie_nvd - Published: 2026-07-15 17:16 - Updated: 2026-07-15 20:50
Severity
9.3 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Summary
Lightpanda is a headless browser designed for AI and automation. Prior to 0.2.9, Lightpanda fetch() and XMLHttpRequest unconditionally attached session cookies to every HTTP request, ignoring credentials: omit, credentials: same-origin, credentials: include, and XMLHttpRequest.withCredentials, allowing an attacker-controlled origin in a Lightpanda session to issue authenticated cross-origin requests against a victim origin. This issue is fixed in version 0.2.9.
References
security-advisories@github.comhttps://github.com/lightpanda-io/browser/commit/2cdaac780bed65db98bbb6ed2ad5bc6011863c76
security-advisories@github.comhttps://github.com/lightpanda-io/browser/pull/2155
security-advisories@github.comhttps://github.com/lightpanda-io/browser/releases/tag/0.2.9
security-advisories@github.comhttps://github.com/lightpanda-io/browser/security/advisories/GHSA-36mm-v3c2-24cc
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "browser",
          "vendor": "lightpanda-io",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.2.9"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Lightpanda is a headless browser designed for AI and automation. Prior to 0.2.9, Lightpanda fetch() and XMLHttpRequest unconditionally attached session cookies to every HTTP request, ignoring credentials: omit, credentials: same-origin, credentials: include, and XMLHttpRequest.withCredentials, allowing an attacker-controlled origin in a Lightpanda session to issue authenticated cross-origin requests against a victim origin. This issue is fixed in version 0.2.9."
    }
  ],
  "id": "CVE-2026-52843",
  "lastModified": "2026-07-15T20:50:57.257",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.8,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-52843",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-15T17:37:05.863200Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-15T17:16:50.467",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/lightpanda-io/browser/commit/2cdaac780bed65db98bbb6ed2ad5bc6011863c76"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/lightpanda-io/browser/pull/2155"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/lightpanda-io/browser/releases/tag/0.2.9"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/lightpanda-io/browser/security/advisories/GHSA-36mm-v3c2-24cc"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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