Security Resilience

CVE-2023-26081

Gnome Epiphany ≤ 43.1

Public PoC
Published
20 February 2023
Modified
18 March 2025
Patch / advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.012 69th percentile
Risk Priority 60 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-26081 is a high-severity Exposure of Resource to Wrong Sphere (CWE-668) vulnerability in Gnome Epiphany. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 31% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

In Epiphany (aka GNOME Web) through 43.0, untrusted web content can trick users into exfiltrating passwords, because autofill occurs in sandboxed contexts.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-29403Same product: Fedoraproject Fedora
CVE-2023-43090Same product: Fedoraproject Fedora
CVE-2023-45145Same product: Fedoraproject Fedora
CVE-2023-28336Same product: Fedoraproject Fedora
CVE-2023-5542Same product: Fedoraproject Fedora
CVE-2023-5545Same product: Fedoraproject Fedora
CVE-2023-38633Same product: Fedoraproject Fedora
CVE-2024-21626Same product: Fedoraproject Fedora
CVE-2024-0443Same product: Fedoraproject Fedora
CVE-2024-5159Same product: Fedoraproject Fedora

Affected Assets

gnome
epiphany
≤ 43.1
fedoraproject
fedora
37

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-668

Controls whether organization resources are exposed to external system spheres by permitting or prohibiting their use.

addresses: CWE-668

The control ensures information is not released into a security sphere where the recipient lacks matching access authorizations.

addresses: CWE-668

The control ensures information resources are not exposed to the incorrect (public) sphere through review and authorization.

addresses: CWE-668

Protects against data mining that would expose resources to unauthorized spheres by enforcing detection and controls.

addresses: CWE-668

Restricts information flows to ensure resources are not exposed to incorrect or unauthorized spheres.

addresses: CWE-668

Controlling internal connections prevents exposure of resources to unintended internal spheres.

addresses: CWE-668

Knowing exact processing and storage locations helps avoid exposure of resources to incorrect spheres.

addresses: CWE-668

The control prevents exposure of the media resource to the wrong security sphere.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-668, a class-level weakness. Rules are authored against its narrower children: CWE-427, CWE-552.

References