CVE-2021-23391
Arbitrary File Write via Archive Extraction (Zip Slip)
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Arbitrary File Write via Archive Extraction (Zip Slip)
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.
- Record
CVE-2021-23391- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:F/RL:U/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-1351
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.
- Record
EUVD-2021-1351- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:F/RL:U/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jxcc-g75x-qgw9
Calipso Arbitrary File Write via Archive Extraction (Zip Slip)
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.
- Record
GHSA-jxcc-g75x-qgw9- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L - Weakness
- CWE-29, CWE-668
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-23391- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L - CVSS 3.1
- 7.1 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H - CVSS 2.0
- 3.6 Low
AV:L/AC:L/Au:N/C:N/I:P/A:P - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVGHSA-jxcc-g75x-qgw9
Calipso Arbitrary File Write via Archive Extraction (Zip Slip)
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.
- Record
GHSA-jxcc-g75x-qgw9- CVSS 3.1
- 7.3 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L - Weakness
- CWE-29, CWE-668
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
calipsonpm |
through 0.3.54 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-23391 is a high vulnerability (CVSS 7.3) in Calipso Project Calipso, published June 7, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. No source names a fixed version.