CVE-2026-56236 json
Capgo CLI - Arbitrary File Overwrite via Symlink-Following in Local Credential Operations
published 2026-03-18 7 mo ago modified 2026-11-08 23 h ago also EUVD-2026-38165 , GHSA-8mpm-q7mh-8fvh
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 7%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.8 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N |
| CNA | 4.0 | 6.8 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @capgo/cli | <7.84.6 |
7.84.6 |
Affected products
- capgo cli
Classification
References
-
github.com
/Cap-go/CLI/commit/b8aa5ccbfad2d7f10f3cdbc00910d4a6aab026b2
web
-
github.com
/Cap-go/capgo/security/advisories/GHSA-8mpm-q7mh-8fvh
vendor-advisory, web
-
vulncheck.com
/advisories/capgo-cli-arbitrary-file-overwrite-via-symlink-following-in-local-credential-operations
third-party-advisory
-
github.com
/Cap-go/capgo
package
Sources
- CVE List CVE-2026-56236
- GitHub Advisory GHSA-8mpm-q7mh-8fvh
- NVD CVE-2026-56236
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.