A file overwrite vulnerability exists in Epiphany when installing WebExtension packages from .xpi files. In src/webextension/ephy-web-extension-manager.c, decompress_xpi_thread() used libarchive with archive_read_support_format_all() (and filters), so the installer did not requir...
Product
GNOME epiphany vulnerabilities
17 published CVES affecting GNOME epiphany, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 17
- Critical
- 0
- High
- 6
- Medium
- 11
- Low
- 0
- Unscored
- 0
- CISA KEV
- 0
Latest GNOME epiphany CVEs
Newest publication first
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MediumCVSS 5.5 EPSS 0.18%
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MediumCVSS 6.5 EPSS 0.47%
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 CLIPBOA...
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CVE-2026-115683 epiphany: TLS certificate warning bypass via race in tlsErrorPage message handler
PublishedMediumCVSS 6.8 EPSS 0.22%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 immed...
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CVE-2026-18487 Epiphany: address bar / host spoofing via userinfo in ephy_uri_get_decoded_host()
PublishedMediumCVSS 5.4 EPSS 0.34%A flaw was found in Epiphany. An issue in how the browser reads web addresses allows attackers to fake the domain name shown in the address bar. If a user clicks a specially crafted link containing a colon (for example, https://trusted.com:80@attacker.com/), the address bar and s...
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HighCVSS 7.5 EPSS 1.2%
In Epiphany (aka GNOME Web) through 43.0, untrusted web content can trick users into exfiltrating passwords, because autofill occurs in sandboxed contexts.
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HighCVSS 7.5 EPSS 2.0%
In GNOME Epiphany before 41.4 and 42.x before 42.2, an HTML document can trigger a client buffer overflow (in ephy_string_shorten in the UI process) via a long page title. The issue occurs because the number of bytes for a UTF-8 ellipsis character is not properly considered.
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MediumCVSS 6.1 EPSS 1.4%
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 because a server's suggested_filename is used as the pdf_name value in PDF.js.
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MediumCVSS 6.1 EPSS 1.6%
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 when View Source mode or Reader mode is used, as demonstrated by a a page title.
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MediumCVSS 6.1 EPSS 1.5%
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 via an error page.
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MediumCVSS 6.1 EPSS 1.6%
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 via an about: page, as demonstrated by ephy-about:overview when a user visits an XSS payload page often enough to place that page on the Most Visited list.
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HighCVSS 8.1 EPSS 4.3%
WebKitGTK and WPE WebKit prior to version 2.24.1 are vulnerable to address bar spoofing upon certain JavaScript redirections. An attacker could cause malicious web content to be displayed as if for a trusted URI. This is similar to the CVE-2018-8383 issue in Microsoft Edge.
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HighCVSS 7.5 EPSS 1.9%
libephymain.so in GNOME Web (aka Epiphany) through 3.28.2.1 allows remote attackers to cause a denial of service (application crash) via certain window.open and document.write calls.
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HighCVSS 7.5 EPSS 1.5%
ephy-session.c in libephymain.so in GNOME Web (aka Epiphany) through 3.28.2.1 allows remote attackers to cause a denial of service (application crash) via JavaScript code that triggers access to a NULL URL, as demonstrated by a crafted window.open call.
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HighCVSS 7.5 EPSS 1.4%
GNOME Web (Epiphany) 3.23 before 3.23.5, 3.22 before 3.22.6, 3.20 before 3.20.7, 3.18 before 3.18.11, and prior versions, is vulnerable to a password manager sweep attack resulting in the remote exfiltration of stored passwords for a selected set of websites.
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MediumCVSS 5.8 EPSS 1.0%
Epiphany 2.28 and 2.29, when WebKit and LibSoup are used, unconditionally displays a closed-lock icon for any URL beginning with the https: substring, without any warning to the user, which allows man-in-the-middle attackers to spoof arbitrary https web sites via a crafted X.509...
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MediumCVSS 6.9 EPSS 0.37%
Untrusted search path vulnerability in the Python interface in Epiphany 2.22.3, and possibly other versions, allows local users to execute arbitrary code via a Trojan horse Python file in the current working directory, related to a vulnerability in the PySys_SetArgv function (CVE...
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MediumCVSS 5.0 EPSS 1.6%
The International Domain Name (IDN) support in Epiphany allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other character sets, which facilitates phishing at...
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.