CVE-2021-43775
Arbitrary file reading vulnerability in Aim
Aim is an open-source, self-hosted machine learning experiment tracking tool. Versions of Aim prior to 3.1.0 are vulnerable to a path traversal attack. By manipulating variables that reference files with “dot-dot-slash (../)” sequences and its variations or by using absolute file paths, it may be possible to access arbitrary files and directories stored on file system including application source code or configuration and critical system files. The vulnerability issue is resolved in Aim v3.1.0.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Arbitrary file reading vulnerability in Aim
Aim is an open-source, self-hosted machine learning experiment tracking tool. Versions of Aim prior to 3.1.0 are vulnerable to a path traversal attack. By manipulating variables that reference files with “dot-dot-slash (../)” sequences and its variations or by using absolute file paths, it may be possible to access arbitrary files and directories stored on file system including application source code or configuration and critical system files. The vulnerability issue is resolved in Aim v3.1.0.
- Record
CVE-2021-43775- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2021-0002
Aim is an open-source, self-hosted machine learning experiment tracking tool. Versions of Aim prior to 3.1.0 are vulnerable to a path traversal attack. By manipulating variables that reference files with “dot-dot-slash (../)” sequences and its variations or by using absolute file paths, it may be possible to access arbitrary files and directories stored on file system including application source code or configuration and critical system files. The vulnerability issue is resolved in Aim v3.1.0.
- Record
EUVD-2021-0002- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8phj-f9w2-cjcc
Arbitrary file reading vulnerability in Aim
Impact
A path traversal attack aims to access files and directories that are stored outside the web root folder. By manipulating variables that reference files with “dot-dot-slash (../)” sequences and its variations or by using absolute file paths, it may be possible to access arbitrary files and directories stored on file system including application source code or configuration and critical system files.
Vulnerable code: https://github.com/aimhubio/aim/blob/0b99c6ca08e0ba7e7011453a2f68033e9b1d1bce/aim/web/api/views.py#L9-L16
Patches
The vulnerability issue is resolved in Aim v3.1.0.
References
- Record
GHSA-8phj-f9w2-cjcc- CVSS 4.0
- 9.2 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N - CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
NVD
Aim is an open-source, self-hosted machine learning experiment tracking tool. Versions of Aim prior to 3.1.0 are vulnerable to a path traversal attack. By manipulating variables that reference files with “dot-dot-slash (../)” sequences and its variations or by using absolute file paths, it may be possible to access arbitrary files and directories stored on file system including application source code or configuration and critical system files. The vulnerability issue is resolved in Aim v3.1.0.
- Record
CVE-2021-43775- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSV
Aim is an open-source, self-hosted machine learning experiment tracking tool. Versions of Aim prior to 3.1.0 are vulnerable to a path traversal attack. By manipulating variables that reference files with “dot-dot-slash (../)” sequences and its variations or by using absolute file paths, it may be possible to access arbitrary files and directories stored on file system including application source code or configuration and critical system files. The vulnerability issue is resolved in Aim v3.1.0.
- Record
CVE-2021-43775- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-8phj-f9w2-cjcc
Arbitrary file reading vulnerability in Aim
Impact
A path traversal attack aims to access files and directories that are stored outside the web root folder. By manipulating variables that reference files with “dot-dot-slash (../)” sequences and its variations or by using absolute file paths, it may be possible to access arbitrary files and directories stored on file system including application source code or configuration and critical system files.
Vulnerable code: https://github.com/aimhubio/aim/blob/0b99c6ca08e0ba7e7011453a2f68033e9b1d1bce/aim/web/api/views.py#L9-L16
Patches
The vulnerability issue is resolved in Aim v3.1.0.
References
- Record
GHSA-8phj-f9w2-cjcc- CVSS 4.0
- 9.2 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N - CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVPYSEC-2021-839 No score
Aim is an open-source, self-hosted machine learning experiment tracking tool. Versions of Aim prior to 3.1.0 are vulnerable to a path traversal attack. By manipulating variables that reference files with “dot-dot-slash (../)� sequences and its variations or by using absolute file paths, it may be possible to access arbitrary files and directories stored on file system including application source code or configuration and critical system files. The vulnerability issue is resolved in Aim v3.1.0.
- Record
PYSEC-2021-839- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
aimPyPI |
before 3.1.0 | 3.1.0 |
aimPyPI |
before 3.1.0, plus listed versions 2.0.192.0.202.0.212.0.222.0.23 Show 30 moreShow less2.0.242.0.252.0.262.0.272.1.02.1.12.1.22.1.32.1.42.1.52.1.62.2.02.2.12.3.02.4.02.5.02.6.02.7.02.7.12.7.22.7.32.7.43.0.03.0.13.0.23.0.33.0.43.0.53.0.63.0.7 |
3.1.0 |
aimPyPI |
before 3.1.0, plus listed versions 2.0.192.0.202.0.20rc12.0.20rc22.0.21 Show 45 moreShow less2.0.21rc12.0.222.0.22rc12.0.22rc22.0.22rc32.0.232.0.242.0.252.0.262.0.272.0.27rc22.0.27rc32.0.27rc42.0.27rc52.1.02.1.12.1.1rc12.1.1rc62.1.22.1.32.1.42.1.52.1.5rc12.1.62.2.02.2.12.3.02.3.0rc12.3.0rc22.3.0rc32.4.02.5.02.5.0rc12.5.0rc22.5.0rc32.5.0rc42.5.0rc52.5.0rc62.5.0rc72.6.02.6.0rc12.7.02.7.0rc12.7.12.7.1rc1 |
3.1.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-43775 is a high vulnerability (CVSS 8.6) in Aimhubio Aim, published November 23, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.91%, the 79th percentile. Fixed in aim 3.1.0.
References
github.com/aimhubio/aim/security/advisories/GHSA-8phj-f9w2-cjcc
nvd.nist.gov/vuln/detail/CVE-2021-43775
Left out here: 37 versions. The JSON record has them.