Vulnerability-Lookup

GHSA-H95F-V923-PCR4

Vulnerability from github – Published: 2026-01-23 06:31 – Updated: 2026-01-23 06:31

Details

A flaw was found in Epiphany, a tool that allows websites to open external URL handler applications with minimal user interaction. This design can be misused to exploit vulnerabilities within those handlers, making them appear remotely exploitable. The browser fails to properly warn or gate this action, resulting in potential code execution on the client device via trusted UI behavior.

Severity

8.0 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-3839"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-356"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-23T05:16:21Z",
    "severity": "HIGH"
  },
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  "id": "GHSA-h95f-v923-pcr4",
  "modified": "2026-01-23T06:31:25Z",
  "published": "2026-01-23T06:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3839"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-3839"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2361430"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-3839 (GCVE-0-2025-3839)

Vulnerability from cvelistv5 – Published: 2026-01-23 03:55 – Updated: 2026-01-23 18:54

Title

Epiphany: insecure external protocol invocation in epiphany

Summary

Severity

8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-356 - Product UI does not Warn User of Unsafe Actions

Assigner

fedora

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2025-3839	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2361430	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
		Affected: 0 , < 47.5 (semver) Affected: 48.0 , < 48.1 (semver)

Date Public

2025-04-21 00:00

Credits

Red Hat would like to thank Michael Catanzaro for reporting this issue.

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                  },
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                  }
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                "timestamp": "2026-01-23T18:54:33.993555Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-H95F-V923-PCR4

CVE-2025-3839 (GCVE-0-2025-3839)

Tags

Sightings

Nomenclature