Vulnerability-Lookup

CVE-2026-34764 (GCVE-0-2026-34764)

Vulnerability from cvelistv5 – Published: 2026-04-06 15:46 – Updated: 2026-04-07 16:00

Title

Electron has a use-after-free in offscreen shared texture release() callback

Summary

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 33.0.0-alpha.1 to before 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5, apps that use offscreen rendering with GPU shared textures may be vulnerable to a use-after-free. Under certain conditions, the release() callback provided on a paint event texture can outlive its backing native state, and invoking it after that point dereferences freed memory in the main process, which may lead to a crash or memory corruption. Apps are only affected if they use offscreen rendering with webPreferences.offscreen: { useSharedTexture: true }. Apps that do not enable shared-texture offscreen rendering are not affected. To mitigate this issue, ensure texture.release() is called promptly after the texture has been consumed, before the texture object becomes unreachable. This vulnerability is fixed in 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5.

Severity ?

2.3 (Low)


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

CWE

CWE-416 - Use After Free

Assigner

GitHub_M

References

URL

Tags

https://github.com/electron/electron/security/adv…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	electron	electron	Affected: >= 33.0.0-alpha.1, < 39.8.5 Affected: >= 40.0.0-alpha.1, < 40.8.5 Affected: >= 41.0.0-alpha.1, < 41.1.0 Affected: >= 42.0.0-alpha.1, < 42.0.0-alpha.5

Show details on NVD website

JSON

To clipboard

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GHSA-8X5Q-PVF5-64MP

Vulnerability from github – Published: 2026-04-03 21:52 – Updated: 2026-04-06 23:40

Summary

Electron: Use-after-free in offscreen shared texture release() callback

Details

Impact

Apps that use offscreen rendering with GPU shared textures may be vulnerable to a use-after-free. Under certain conditions, the release() callback provided on a paint event texture can outlive its backing native state, and invoking it after that point dereferences freed memory in the main process, which may lead to a crash or memory corruption.

Apps are only affected if they use offscreen rendering with webPreferences.offscreen: { useSharedTexture: true }. Apps that do not enable shared-texture offscreen rendering are not affected.

Workarounds

Ensure texture.release() is called promptly after the texture has been consumed, before the texture object becomes unreachable.

Fixed Versions

42.0.0-alpha.5
41.1.0
40.8.5
39.8.5

For more information

If there are any questions or comments about this advisory, send an email to security@electronjs.org

Severity ?

2.3 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "33.0.0-alpha.1"
            },
            {
              "fixed": "39.8.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "40.0.0-alpha.1"
            },
            {
              "fixed": "40.8.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "41.0.0-alpha.1"
            },
            {
              "fixed": "41.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "electron"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "42.0.0-alpha.1"
            },
            {
              "fixed": "42.0.0-alpha.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-34764"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-03T21:52:33Z",
    "nvd_published_at": "2026-04-06T16:16:36Z",
    "severity": "LOW"
  },
  "details": "### Impact\nApps that use offscreen rendering with GPU shared textures may be vulnerable to a use-after-free. Under certain conditions, the `release()` callback provided on a `paint` event texture can outlive its backing native state, and invoking it after that point dereferences freed memory in the main process, which may lead to a crash or memory corruption.\n\nApps are only affected if they use offscreen rendering with `webPreferences.offscreen: { useSharedTexture: true }`. Apps that do not enable shared-texture offscreen rendering are not affected.\n\n### Workarounds\nEnsure `texture.release()` is called promptly after the texture has been consumed, before the texture object becomes unreachable.\n\n### Fixed Versions\n* `42.0.0-alpha.5`\n* `41.1.0`\n* `40.8.5`\n* `39.8.5`\n\n### For more information\nIf there are any questions or comments about this advisory, send an email to [security@electronjs.org](mailto:security@electronjs.org)",
  "id": "GHSA-8x5q-pvf5-64mp",
  "modified": "2026-04-06T23:40:20Z",
  "published": "2026-04-03T21:52:33Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/electron/electron/security/advisories/GHSA-8x5q-pvf5-64mp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34764"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/electron/electron"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Electron: Use-after-free in offscreen shared texture release() callback"
}

FKIE_CVE-2026-34764

Vulnerability from fkie_nvd - Published: 2026-04-06 16:16 - Updated: 2026-04-07 13:20

Severity ?

2.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/electron/electron/security/advisories/GHSA-8x5q-pvf5-64mp

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 33.0.0-alpha.1 to before 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5, apps that use offscreen rendering with GPU shared textures may be vulnerable to a use-after-free. Under certain conditions, the release() callback provided on a paint event texture can outlive its backing native state, and invoking it after that point dereferences freed memory in the main process, which may lead to a crash or memory corruption. Apps are only affected if they use offscreen rendering with webPreferences.offscreen: { useSharedTexture: true }. Apps that do not enable shared-texture offscreen rendering are not affected. To mitigate this issue, ensure texture.release() is called promptly after the texture has been consumed, before the texture object becomes unreachable. This vulnerability is fixed in 39.8.5, 40.8.5, 41.1.0, and 42.0.0-alpha.5."
    }
  ],
  "id": "CVE-2026-34764",
  "lastModified": "2026-04-07T13:20:11.643",
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          "attackVector": "LOCAL",
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          "baseScore": 2.3,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
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        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
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  "published": "2026-04-06T16:16:36.767",
  "references": [
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      "url": "https://github.com/electron/electron/security/advisories/GHSA-8x5q-pvf5-64mp"
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}

Sightings

Author	Source	Type	Date

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

CVE-2026-34764 (GCVE-0-2026-34764)

GHSA-8X5Q-PVF5-64MP

Impact

Workarounds

Fixed Versions

For more information

FKIE_CVE-2026-34764

Tags

Sightings

Nomenclature