CVE-2026-13484MLflow Experiment-scoped Label Schema CRUD API authorization
- 2.3LowCVSS base score
- 0.50%Exploitation in 30 daysEPSS · top 56% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
Description
A vulnerability has been found in MLflow up to 4666cffc7912ea606d592fc38d6a75e2935f65e7. The impacted element is an unknown function of the component Experiment-scoped Label Schema CRUD API. Such manipulation leads to missing authorization. It is possible to launch the attack remotely. A high complexity level is associated with this attack. The exploitability is regarded as difficult. The exploit has been disclosed to the public and may be used. A reply to the GitHub issue explains, that "[t]he labeling schema PR has not been merged yet. The auth handlers will be added before the release."
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. 2 references of the record are tagged as an exploit. CISA's SSVC rates its exploitation: a proof of concept is public.
Show the exploits2
References tagged exploit2 references
- https://github.com/mlflow/mlflow/issues/23608 (opens in a new tab)exploitissue-tracking
- https://github.com/mlflow/mlflow/issues/23608#issuecomment-4560963877 (opens in a new tab)issue-trackingexploit
Timeline
ID reserved
By VulDB
- 1 day later
· 1 day later
Published
- 2 days later
· 2 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulDBCNA (assigner) | 4.0 | Low2.3 | CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P |
| VulDBCNA (assigner) | 3.1 | Medium5.0 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C |
| VulDBCNA (assigner) | 3.0 | Medium5.0 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C |
| VulDBCNA (assigner) | 2.0 | Medium4.6 | AV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:C |
| NVDNVD · Analyzed | 4.0 | Low1.3 | CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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 |
- EPSS (exploitation in 30 days)
- 0.50% · top 56% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.3.
Affected products
MLflow
- affected 4666cffc7912ea606d592fc38d6a75e2935f65e7
References
References7
- VDB-374481 | MLflow Experiment-scoped Label Schema CRUD API authorization (opens in a new tab)vdb-entry
- VDB-374481 | CTI Indicators (IOB, IOC) (opens in a new tab)signaturepermissions-required
- CVE-2026-13484 | CVE Analysis and Report (opens in a new tab)third-party-advisory
- Submit #837658 | MLflow Unreleased development code in pull request #23607, commit 4666cffc7912ea606d592fc38d6a75e2935f65e7. No released MLflow version CWE-862 Missing Authorization (opens in a new tab)third-party-advisory
- https://github.com/mlflow/mlflow/issues/23608 (opens in a new tab)exploitissue-tracking
- https://github.com/mlflow/mlflow/issues/23608#issuecomment-4560963877 (opens in a new tab)issue-trackingexploit
- https://github.com/mlflow/mlflow/ (opens in a new tab)product
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-39984 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-13484)Record last updated .