CVE-2026-102677

Source
https://cve.org/CVERecord?id=CVE-2026-102677
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102677.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-102677
Aliases
Published
2026-09-29T17:43:26Z
Modified
2026-10-01T08:05:53Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Electron: Sandboxed preload code cache can be poisoned by a compromised renderer
Details

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.3 until 42.10.0, 43.5.0, and 44.0.0-beta.6, Electron's sandboxed preload code cache did not verify that a cached entry matched the preload it was served for. A compromised renderer could write attacker-controlled cache data and cause Electron to reuse it for a later load, executing the renderer's code in the more privileged preload context. The issue affects applications that load untrusted content. This issue is fixed in versions 42.10.0, 43.5.0, and 44.0.0-beta.6.

Database specific
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-20",
        "CWE-345"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102677.json"
}
References

Affected packages

Git / github.com/electron/electron

Affected ranges

Type
GIT
Repo
https://github.com/electron/electron
Events
Database specific
Show details
{
    "extracted_events":  [
        {
            "introduced":  "42.3.3"
        },
        {
            "fixed":  "42.10.0"
        },
        {
            "introduced":  "43.0.0-beta.1"
        },
        {
            "fixed":  "43.5.0"
        },
        {
            "introduced":  "44.0.0-alpha.1"
        },
        {
            "fixed":  "44.0.0-beta.6"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v42.*
v42.3.3
v42.4.0
v42.4.1
v42.5.0
v42.5.1
v42.5.2
v42.6.0
v42.6.1
v42.6.2
v42.7.0
v42.7.1
v42.8.0
v42.8.1
v42.9.0
v42.9.1
v42.9.2
v42.9.3
v43.*
v43.0.0
v43.0.0-beta.1
v43.0.0-beta.2
v43.0.0-beta.3
v43.0.0-beta.4
v43.0.0-beta.5
v43.0.0-beta.6
v43.0.0-beta.7
v43.0.0-beta.8
v43.0.0-beta.9
v43.1.0
v43.1.1
v43.2.0
v43.3.0
v43.4.0
v43.4.1
v43.4.2
v44.*
v44.0.0-alpha.1
v44.0.0-alpha.2
v44.0.0-alpha.3
v44.0.0-alpha.4
v44.0.0-alpha.5
v44.0.0-alpha.6
v44.0.0-alpha.7
v44.0.0-alpha.8
v44.0.0-alpha.9
v44.0.0-beta.1
v44.0.0-beta.2
v44.0.0-beta.3
v44.0.0-beta.4
v44.0.0-beta.5
v45.*
v45.0.0-nightly.20260702
v45.0.0-nightly.20260703
v45.0.0-nightly.20260706
v45.0.0-nightly.20260709
v45.0.0-nightly.20260714
v45.0.0-nightly.20260716
v45.0.0-nightly.20260720
v45.0.0-nightly.20260721
v45.0.0-nightly.20260722
v45.0.0-nightly.20260723
v45.0.0-nightly.20260724
v45.0.0-nightly.20260727
v45.0.0-nightly.20260728
v45.0.0-nightly.20260729
v45.0.0-nightly.20260730
v45.0.0-nightly.20260731
v45.0.0-nightly.20260803
v45.0.0-nightly.20260804
v45.0.0-nightly.20260805

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102677.json"
vanir_signatures
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vanir_signatures_modified
"2026-10-01T08:05:53Z"