CVE-2026-54672

electron-updater: Uncontrolled search path elements within `AppImage` built by `app-builder-lib`

HIGH
7.8
CVSS Score
Published: June 30, 2026 at 10:15 PM UTC
Updated: August 18, 2026 at 05:55 PM UTC
3 products affected across 2 vendorsElectron BuilderElectron BuilderApp Builder Lib

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

electron-updater allows for automatic updates for Electron apps. Prior to 26.15.0, AppImage targets built by app-builder-lib could use an empty path component when setting the LD_LIBRARY_PATH environment variable at runtime. This causes the current working directory to be added to the dynamic linker search path, which may allow an attacker to execute arbitrary code by placing a malicious shared library in the directory from which the AppImage is launched. This issue has been fixed in version 26.15.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 26.15.0
Affected range stops below 26.15.0, so it looks safe — our inference, not a vendor statement
v < 26.15.0
Affected range stops below 26.15.0, so it looks safe — our inference, not a vendor statement
v < 26.15.0
Affected range stops below 26.15.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-427

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