{
    "id": "CVE-2026-20896",
    "published": "2026-07-03 21:16:56",
    "last_modified": "2026-07-07 18:16:35",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-284",
    "description": "Gitea Docker image versions up to and including 1.26.2 use REVERSE_PROXY_TRUSTED_PROXIES=* by default, allowing any source IP to impersonate a user when reverse-proxy authentication headers such as X-WEBAUTH-USER are enabled.",
    "epss_score": "0.02755",
    "epss_percentile": "0.85862",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-12 18:17:52",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://blog.gitea.com/release-of-1.26.3-and-1.26.4/",
        "https://github.com/go-gitea/gitea/pull/38151",
        "https://github.com/go-gitea/gitea/releases/tag/v1.26.3",
        "https://github.com/go-gitea/gitea/security/advisories/GHSA-f75j-4cw6-rmx4",
        "https://github.com/go-gitea/gitea/security/advisories/GHSA-f75j-4cw6-rmx4"
    ]
}