CVE-2026-115683

Что произошло

A race condition in Epiphany allows a malicious website to bypass the TLS/SSL certificate warning page. Epiphany registers the main-world script message handler "tlsErrorPage" so its internal TLS error page can implement "Accept Risk and Proceed". The handler was registered immediately before loading the error page, leaving a brief window where the previously loaded untrusted origin could still call window.webkit.messageHandlers.tlsErrorPage.postMessage(...). The only authorization check compares a numeric WebKit page id that increments predictably; an attacker can burst-guess ids and approve a certificate exception with no user click. If a victim visits malicious site A that redirects to site B with an invalid certificate, site A can, for a few milliseconds, disable TLS certificate error warnings for host B until Epiphany is restarted, enabling man-in-the-middle or site spoofing for that host. Upstream report: https://gitlab.gnome.org/GNOME/epiphany/-/work_items/2978 Proof of concept: https://beford.net/poc/ssl_poc.html Fix: https://gitlab.gnome.org/GNOME/epiphany/-/merge_requests/2245 (register handlers on LOAD_COMMITTED). No fixed release tagged yet; reporter and maintainer describe all current versions as affected. Maintainer notes the risky registration timing dates to commit 1da1caed (Epiphany 45.x era); before that the handlers were always registered and similarly reachable from web content.

Что делать

dpkg-query -W -f='${Package}	${Version}\n'

rpm -qa --qf '%{NAME}\t%{VERSION}-%{RELEASE}\n'

Get-HotFix | Select-Object HotFixID, InstalledOn

Продукты и затронутые версии

{
  "status": "affected",
  "version": "0",
  "lessThan": "51.1",
  "versionType": "semver"
}

CVSS: оценки и векторы

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Источники и ссылки

{
  "cwes": [
    "cve",
    "ghsa",
    "nvd"
  ],
  "epss": {
    "source": "epss",
    "received_at": "2026-11-03T21:11:57.702145+00:00"
  },
  "title": {
    "source": "cve",
    "received_at": "2026-11-02T11:52:42.851705+00:00"
  },
  "scores": [
    "cve",
    "ghsa",
    "nvd"
  ],
  "status": {
    "source": "cve",
    "received_at": "2026-11-02T11:52:42.851705+00:00"
  },
  "affected": [
    "cve"
  ],
  "published": {
    "source": "cve",
    "received_at": "2026-11-02T11:52:42.851705+00:00"
  },
  "solutions": [],
  "percentile": {
    "source": "epss",
    "received_at": "2026-11-03T21:11:57.702145+00:00"
  },
  "references": [
    "cve",
    "ghsa",
    "nvd"
  ],
  "description": {
    "source": "cve",
    "received_at": "2026-11-02T11:52:42.851705+00:00"
  },
  "workarounds": [
    "cve"
  ],
  "configurations": []
}

Хронология записи

1. Данные обновлены04.11.2026, 00:11
2. Данные обновлены03.11.2026, 00:11
3. Данные обновлены02.11.2026, 12:51
4. Данные обновлены02.11.2026, 03:33
5. Данные обновлены02.11.2026, 00:09
6. Данные обновлены30.10.2026, 20:51
7. Появилась ссылка на PoC30.10.2026, 17:20
8. Опубликована30.10.2026, 16:49

Личная заметка и статус

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