01 Record
CVE-2026-70612
Electron: Sandboxed iframes can launch external protocol handlers
MediumPUBLISHEDCNA: GitHub_M
CNA base score5.4 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
02 Description
Electron: Sandboxed iframes can launch external protocol handlers
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.42% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 36.8% of scored records. A rank, not a probability.
- NVD base score
- 5.4 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-08.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-05 17:56Z2 MO AGO
- Last updated
- 2026-08-05 19:03Z2 MO AGO
- Reserved
- 2026-08-04
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.4)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-284Improper Access ControlPillar
- Data version
- 5.2
- Document digest
- 30ec91821d2c4301205b4bd5455582608d5a8719d5bee092b9e55f9e6f81e8db
05 Affected products
VendorProductVersionsPlatforms
electronelectron< 39.8.8, >= 40.0.0-alpha.1, < 40.9.0, >= 41.0.0-alpha.1, < 41.2.1, >= 42.0.0-alpha.1, < 42.0.0-beta.3—
06 References
- github.comhttps://github.com/electron/electron/security/advisories/GHSA-p2rr-rvmm-c5fp
- github.comhttps://github.com/electron/electron/pull/50961
- github.comhttps://github.com/electron/electron/pull/50962
- github.comhttps://github.com/electron/electron/pull/50963
- github.comhttps://github.com/electron/electron/pull/50964
- github.comhttps://github.com/electron/electron/commit/08b9d0a220e267d1a2402a44bdd01a2e9aa320b5
- github.comhttps://github.com/electron/electron/commit/2764e4c35168855f614876051823db4f58a3714a
- github.comhttps://github.com/electron/electron/commit/477dcf7afc6550715f9ec5e6f39ee38e5dd7bf39
- github.comhttps://github.com/electron/electron/commit/c39e3d5687d57434c8d5fe814c5152efd2f631c3
- github.comhttps://github.com/electron/electron/releases/tag/v39.8.8
- github.comhttps://github.com/electron/electron/releases/tag/v40.9.0
- github.comhttps://github.com/electron/electron/releases/tag/v41.2.1
- github.comhttps://github.com/electron/electron/releases/tag/v42.0.0-beta.3