CVE-2023-1177
CriticalExploitedPublic exploitmlflow is vulnerable to remote file access in mlflow server and mlflow ui CLIs
Published Mar 24, 2023 · Updated Sep 8, 2026 · Also known as BIT-mlflow-2023-1177, GHSA-xg73-94fp-g449, PYSEC-2023-29
Key Facts
Patch immediately- CVE-2023-1177 is a critical-severity vulnerability (CVSS 9.3 v4) affecting Mlflow (Lfprojects), mlflow/mlflow.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023. Public exploit code is available.
- EPSS estimates a 70% probability of exploitation in the next 30 days.
- Fixed versions are available, including Mlflow 2.2.1, Mlflow 7162a50c654792c21f3e4a160eb1a0e6a34f6e6e, mlflow/mlflow 2.2.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v4
9.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS (30-day exploit likelihood)
70%
Higher than 99.3% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2023-1177 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Path Traversal: '\..\filename' in GitHub repository mlflow/mlflow prior to 2.2.1.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Dec 1, 2023 | n/a | Not reported |
| CIRCL KEV | Oct 14, 2023 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| MlflowLfprojects | See advisory | 2.2.1 |
| mlflow/mlflow | >= unspecified | 2.2.1 |
Patched Releases
Mlflow
2.2.1, 7162a50c654792c21f3e4a160eb1a0e6a34f6e6e
mlflow/mlflow
2.2.1
Timeline
Publicly disclosed
Mar 24, 2023
Added to CIRCL KEV
Oct 14, 2023
Added to Industry KEV feed
Dec 1, 2023
Last updated
Sep 8, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-29 Path Traversal: '\..\filename'
References
- advisoryGHSA advisory
- advisoryhttps://github.com/calcom/cal.com/commit/c76e5f46101a826b2de39123c22f50c840dddba0
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2023/1xxx/CVE-2023-1177.json
- advisoryhttps://github.com/mlflow/mlflow/commit/63ef72aa4334a6473ce7f889573c92fcae0b3c0d
- advisoryhttps://huntr.dev/bounties/ae92f814-6a08-435c-8445-eec0ef4f1085
FAQ
Common Questions.
Path Traversal: '\..\filename' in GitHub repository mlflow/mlflow prior to 2.2.1.
Affected: Mlflow (Lfprojects); mlflow/mlflow versions >= unspecified. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Mlflow 2.2.1, Mlflow 7162a50c654792c21f3e4a160eb1a0e6a34f6e6e, mlflow/mlflow 2.2.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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