Plane has a Server-Side Request Forgery (SSRF) in Favicon Fetching_CVE-2026-39843

{
    "lastseen": "",
    "description": "Plane is an an open-source project management tool. From 0.28.0 to before 1.3.0, the remediation of GHSA-jcc6-f9v6-f7jw is incomplete which could lead to the same full read Server-Side Request Forgery when a normal html page contains a link tag with an href that redirects to a private IP address is supplied to Add link by an authenticated attacker with low privileges. Redirects for the main page URL are validated, but not the favicon fetch path. fetch_and_encode_favicon() still uses requests.get(favicon_url, ...) with the default redirect-following. This vulnerability is fixed in 1.3.0.",
    "published": "2026-04-09T15:43:34.963Z",
    "modified": "2026-04-09T15:43:34.963Z",
    "type": "cve",
    "title": "Plane has a Server-Side Request Forgery (SSRF) in Favicon Fetching",
    "source": "GitHub_M",
    "references": "https://github.com/makeplane/plane/security/advisories/GHSA-9fr2-pprw-pp9j",
    "id": "CVE-2026-39843",
    "bulletinFamily": "",
    "cwe": [
        "CWE-918"
    ],
    "cvelist": null,
    "sourceData": "makeplane plane >= 0.28.0, < 1.3.0",
    "sourceHref": "",
    "cvss": {
        "score": 7.7,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
        "version": "3.1"
    },
    "cvss2": [],
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        "baseScore": 0,
        "baseSeverity": "",
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        "privilegesRequired": "",
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        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "plane",
    "version": ">= 0.28.0, < 1.3.0",
    "vendor": "makeplane",
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    "ai_score": 0
}