01 Record
CVE-2026-115895
Happy DOM: Incomplete fix for CVE-2026-33943: unsanitized import alias leads to host code execution
HighPUBLISHEDCNA: GitHub_M
CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
02 Description
Happy DOM: Incomplete fix for CVE-2026-33943: unsanitized import alias leads to host code execution
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.36% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 30.2% of scored records. A rank, not a probability.
- NVD base score
- 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-26.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
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
- 2026-10-23 21:32Z6 DAYS AGO
- Last updated
- 2026-10-23 21:32Z6 DAYS AGO
- Reserved
- 2026-10-23
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.8)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-94Improper Control of Generation of Code ('Code Injection')Base
- Data version
- 5.2
- Document digest
- 10c39c0d017a24b30d065e9a8c9e746afc503b30e1ccd0c6e104b158a8e7e74e
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/capricorn86/happy-dom/security/advisories/GHSA-834v-8h66-3h79
- github.comhttps://github.com/capricorn86/happy-dom/pull/2537
- github.comhttps://github.com/capricorn86/happy-dom/commit/fd163520b74d9fa146be91f7b4e4f46d6cccbe13
- github.comhttps://github.com/capricorn86/happy-dom/releases/tag/v21.0.4