CVE-2026-115886: mlflow · Unsafe Reflection
Affects mlflowSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 3.17.0 when convenient.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 25% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.17.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 23 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade mlflow to 3.17.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| mlflowmlflow | Affected
| Fixed in
|
AI-suggested
Upgrade MLflow to version 3.17.0 or later, where this vulnerability is fixed. No other mitigations are indicated or required according to the vendor advisory.
Description
MLflow versions from 3.12.0rc0 up to but not including 3.17.0 contain a vulnerability involving unsafe reflection in certain endpoints that accept serialized third-party scorer data. This flaw allows attackers to manipulate class selection and constructor arguments, potentially causing the server to make outbound requests to attacker-controlled or internal hosts. The issue is resolved in version 3.17.0.
References
- github.com/mlflow/mlflow/security/advisories/GHSA-2wqp-q3c6-ccj5 (opens in a new tab)
- github.com/mlflow/mlflow/pull/25890 (opens in a new tab)
- github.com/mlflow/mlflow/commit/bac30b4148c4f40045b4d4db07ae60ab3838803f (opens in a new tab)
- github.com/mlflow/mlflow/releases/tag/v3.17.0 (opens in a new tab)