CVE-2026-13723

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Source
https://cve.org/CVERecord?id=CVE-2026-13723
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-13723.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-13723
Published
2026-07-29T17:25:22.185Z
Modified
2026-07-31T03:49:08.024980753Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
Summary
Develar's electron-builder allows arbitrary file overwrite
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13723.json",
    "cna_assigner": "certcc"
}
References

Affected packages

Git / github.com/develar/app-builder

Affected ranges

Type
GIT
Repo
https://github.com/develar/app-builder
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
0bc38fb5e76c38ab24e36acf7a17887370e31fb4
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.2.0"
        }
    ]
}

Affected versions

pkg/v3.*
pkg/v3.3.0
v0.*
v0.1.0
v0.2.0
v0.2.1
v0.3.0
v0.3.1
v0.4.0
v0.5.0
v0.6.0
v0.6.1
v1.*
v1.10.3
v1.11.0
v1.11.2
v1.11.5
v1.8.7
v1.9.0
v1.9.2
v1.9.6
v2.*
v2.0.0
v2.6.0
v2.6.13
v2.6.14
v2.6.17
v2.6.18
v3.*
v3.0.2
v3.3.0
v3.4.0
v3.4.2
v4.*
v4.2.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-13723.json"