CVE-2026-102598

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 ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 30.6% of scored records. A rank, not a probability.

NVD base score

6.3 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-09-30.

Red Hat severity

Moderate. 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.

Published

2026-09-29 15:16Z29 DAYS AGO

Last updated

2026-09-29 15:44Z29 DAYS AGO

Reserved

2026-09-29

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Weaknesses

• CWE-67Improper Handling of Windows Device NamesVariant
• CWE-66Improper Handling of File Names that Identify Virtual ResourcesBase

Data version

5.2

Document digest

b906fbfc2ed512019865d172c839e7ca954c605ced6f23330a466d8f5a34c056

• github.comhttps://github.com/pallets/werkzeug/security/advisories/GHSA-g6x2-hccm-hh4mx_refsource_CONFIRM
• github.comhttps://github.com/pallets/werkzeug/pull/3309x_refsource_MISC
• github.comhttps://github.com/pallets/werkzeug/commit/8d77320bcdf3a34941ec06dcf16b03c065cd21b6x_refsource_MISC
• github.comhttps://github.com/pallets/werkzeug/releases/tag/3.1.9x_refsource_MISC