CVE-2026-73417

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total 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

0.74% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 54.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:L/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 2026-09-18.

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.

Published

2026-08-13 22:04Z2 MO AGO

Last updated

2026-08-14 16:06Z2 MO AGO

Reserved

2026-08-12

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

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

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
• CWE-116Improper Encoding or Escaping of OutputClass

Data version

5.2

Document digest

e6bb8beccbbdc9df59e23137c5ce15bc9564e7d35d838c5fe6eca11ef4c70a45

• github.comhttps://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-pppj-hq3g-57pjx_refsource_CONFIRM
• github.comhttps://github.com/jupyterlab/jupyterlab/pull/19184x_refsource_MISC
• github.comhttps://github.com/jupyterlab/jupyterlab/pull/19185x_refsource_MISC
• github.comhttps://github.com/jupyterlab/jupyterlab/pull/19186x_refsource_MISC
• github.comhttps://github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c06637c999x_refsource_MISC
• github.comhttps://github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c903046682c2cx_refsource_MISC
• github.comhttps://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf5a39a432x_refsource_MISC
• github.comhttps://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10x_refsource_MISC
• github.comhttps://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2x_refsource_MISC
• github.comhttps://github.com/jupyterlab/jupyterlab/releases/tag/v4.7.0a1x_refsource_MISC