CVE-2026-118598
epiphany: clipboard/website-data permission prompt incorrectly grants camera and microphone access
A logic error in Epiphany's site permission handling can cause camera and microphone access to be granted when the user only approves a different permission. In src/ephy-window.c, set_permission() stores the user's Allow/Deny choice after a WebKit permission dialog. Types CLIPBOARD and WEBSITE_DATA_ACCESS are not stored by ephy_permission_is_stored_by_permissions_manager(), so control fell into an else-if that was written as: } else if (EPHY_PERMISSION_TYPE_ACCESS_WEBCAM_AND_MICROPHONE) { Because that expression is a non-zero enum constant, the branch always ran for those types and wrote EPHY_PERMISSION_PERMIT for both ACCESS_WEBCAM and ACCESS_MICROPHONE for the site origin. The user only saw a Clipboard or Website Data Access dialog. A malicious site that obtains approval for clipboard or third-party storage access can afterwards use getUserMedia without a further camera/microphone prompt, exposing audiovisual confidentiality. Requirements: the victim must visit a malicious page and click Allow on a clipboard or website-data-access prompt. Affected: Epiphany >= 45.0 (bug present at least through 51.x). Fixed: https://gitlab.gnome.org/GNOME/epiphany/-/merge_requests/2249 (commit 480c3648). Upstream: https://gitlab.gnome.org/GNOME/epiphany/-/work_items/2976 Reporter acknowledgment: Fernando Munoz
Fixes and workarounds
Workaround
Do not approve Clipboard or Website Data Access prompts on untrusted sites. Review and revoke camera and microphone site permissions in Epiphany (site permissions / privacy settings) for any origin where those prompts were accepted. Prefer browsing untrusted content with media devices disconnected or disabled at the OS level. Upgrade to a fixed Epiphany build containing MR !2249 / commit 480c3648 when available for your stream.
Source: CNA: fedoraAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Epiphany GNOME epiphany
https://gitlab.gnome.org/GNOME/epiphany |
≥ 45.0; < * (affected, semver)
Other versions: unaffected |
CNA: fedora |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | CNA: fedora |
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://access.redhat.com/security/cve/CVE-2026-118598CNA: fedora · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2562956CNA: fedora · issue-tracking, x_refsource_REDHAT
- https://gitlab.gnome.org/GNOME/epiphany/-/work_items/2976CNA: fedora
- https://gitlab.gnome.org/GNOME/epiphany/-/merge_requests/2249CNA: fedora
- https://access.redhat.com/security/cve/CVE-2026-118598[email protected]
- https://bugzilla.redhat.com/show_bug.cgi?id=2562956[email protected]
- https://gitlab.gnome.org/GNOME/epiphany/-/merge_requests/2249[email protected]
- https://gitlab.gnome.org/GNOME/epiphany/-/work_items/2976[email protected]
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