CVE-2021-23391
It is possible for a malicious module to overwrite files on an arbitrary file system through the module install functionality.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
This affects all versions of package calipso. It is possible for a malicious module to overwrite files on an arbitrary file system through the module install functionality.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- EPSS
- 0.43% probability · 37th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- calipso project/calipso
- Source
- report@snyk.io
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/cliftonc/calipsoThird Party Advisory
- https://snyk.io/vuln/SNYK-JS-CALIPSO-1300555Exploit, Third Party Advisory
- https://github.com/cliftonc/calipsoThird Party Advisory
- https://snyk.io/vuln/SNYK-JS-CALIPSO-1300555Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.