CVE-2026-56236: Improper Link Resolution Before File Access ('Link Following') in capgo cli
Capgo CLI before 12.128.2 contains arbitrary file overwrite vulnerabilities in login and build credentials operations that follow symlinks without validation. Attackers can create malicious symlinks in repositories to overwrite arbitrary files or expose credentials with world-readable permissions when developers run the CLI.
AI Analysis
Technical Summary
Capgo CLI versions prior to 12.128.2 contain an arbitrary file overwrite vulnerability due to improper validation of symbolic links during login and build credential operations. This 'link following' flaw allows attackers who can place malicious symlinks in repositories to cause the CLI to overwrite arbitrary files or expose sensitive credentials with insecure permissions when executed by developers.
Potential Impact
Successful exploitation can lead to arbitrary file overwrite on the developer's system or exposure of credentials with world-readable permissions. This can compromise system integrity and confidentiality of sensitive information. The CVSS 4.0 base score is 6.8 (medium severity), reflecting local attack vector with low complexity but requiring user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid running the CLI on untrusted repositories or ensure that symlinks are not present or are validated before use.
CVE-2026-56236: Improper Link Resolution Before File Access ('Link Following') in capgo cli
Description
Capgo CLI before 12.128.2 contains arbitrary file overwrite vulnerabilities in login and build credentials operations that follow symlinks without validation. Attackers can create malicious symlinks in repositories to overwrite arbitrary files or expose credentials with world-readable permissions when developers run the CLI.
CVSS v4.0
Score 6.8medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Capgo CLI versions prior to 12.128.2 contain an arbitrary file overwrite vulnerability due to improper validation of symbolic links during login and build credential operations. This 'link following' flaw allows attackers who can place malicious symlinks in repositories to cause the CLI to overwrite arbitrary files or expose sensitive credentials with insecure permissions when executed by developers.
Potential Impact
Successful exploitation can lead to arbitrary file overwrite on the developer's system or exposure of credentials with world-readable permissions. This can compromise system integrity and confidentiality of sensitive information. The CVSS 4.0 base score is 6.8 (medium severity), reflecting local attack vector with low complexity but requiring user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid running the CLI on untrusted repositories or ensure that symlinks are not present or are validated before use.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-06-19T21:50:06.625Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a37ed4baaf2dc2701b2274f
Added to database: 06/21/2026, 13:55:23 UTC
Last enriched: 06/28/2026, 21:51:48 UTC
Last updated: 08/04/2026, 12:46:13 UTC
Views: 55
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