CVE-2026-13723 (GCVE-0-2026-13723)

Vulnerability from cvelistv5 – Published: 2026-07-29 17:25 – Updated: 2026-07-29 18:21
VLAI
Title
Develar's electron-builder allows arbitrary file overwrite
Summary
A vulnerability in the `zipx.Unzip` extraction routine of Develar's app-builder allows an attacker to overwrite arbitrary files on macOS APFS by exploiting a Unicode Normalization Collision combined with symlink following behavior. APFS treats certain Unicode equivalent filenames as identical (e.g., ß ↔ ss), while app builder performs no canonical normalization before validating or writing paths. As a result, a crafted ZIP archive containing: • a symlink entry named ss pointing to a target file, and • a regular file named ß containing attacker controlled data, will cause the second write to follow the symlink and overwrite the target file.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 18:21 UTC
CWE
Assigner
certcc CNA under the mitre root
CNA scorecard E 42/100 over 165 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Develar app-builder Affected: 0 , ≤ 4.2.0 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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