01 Record
CVE-2026-2635
MLflow Use of Default Password Authentication Bypass Vulnerability
CriticalPUBLISHEDCNA: zdi
CNA base score9.8 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
02 Description
MLflow Use of Default Password Authentication Bypass Vulnerability
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 1.07% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 64.7% of scored records. A rank, not a probability.
- NVD base score
- 7.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- NVD analysis status
- Deferred. NVD last modified this record on 2026-07-15.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-02-20 22:25Z8 MO AGO
- Last updated
- 2026-07-15 01:14Z3 MO AGO
- Reserved
- 2026-02-17
- Assigning CNA
- zdi
- Record state
- PUBLISHED
- Severity
- Critical (CVSS 9.8)
- CNA CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- Data version
- 5.2
- Document digest
- 0d4c3197c72f809d1ebe927920f610678b111c8239b15b6d4ff925d8b8b388c5
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.zerodayinitiative.comZDI-26-111https://www.zerodayinitiative.com/advisories/ZDI-26-111/
- github.comvendor-provided URLhttps://github.com/mlflow/mlflow/pull/19260
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-2635
- bugzilla.redhat.comRHBZ#2441514https://bugzilla.redhat.com/show_bug.cgi?id=2441514
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2635.json