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

Description

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.

Scores

EPSS (exploitation in 30 days)

0.10% · top 99% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.3.

Weakness

• CWE-416: Use After Free (opens in a new tab)All about CWE-416 and its CVEs

Affected products

• 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

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• npmelectronGHSA-8x5q-pvf5-64mp (opens in a new tab)

References (1)

• https://github.com/electron/electron/security/advisories/GHSA-8x5q-pvf5-64mp (opens in a new tab)x_refsource_CONFIRM

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-8x5q-pvf5-64mp (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-34764](https://trackcve.app/badge/CVE-2026-34764.svg)](https://trackcve.app/cve/CVE-2026-34764)

Record last updated 7 Apr 2026, 16:00 UTC.