jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. Prior to 4.5.10 and 4.6.2, in packages/imageviewer/src/widget.ts, JupyterLab's ImageViewer uses URL.createObjectURL for a specially crafted SVG image and revokes the blob URL too early, allowing the image to retain an executable same-origin context when it is opened through the image viewer and then opened in a new browser tab. The resulting cross-site scripting can be used to execute arbitrary code on the JupyterLab server. This issue is fixed in versions 4.5.10 and 4.6.2.
CVE-2026-73415
“—” beside the score: it is equal to the CVSS score beside it.
This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.7% (54th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2026-57535 (ENISA EUVD) · GHSA-gx64-gj6p-pc4c (GitHub Security Advisories)Source: ENISA EUVD
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5HIGHmedium confidence
- EG Risk
- 34EG Risk 34/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity75% × 45%Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.7% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.7%
- EPSS %ILE
- 54th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
- EG Likelihood
- 0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
August 12, 2026
Last Modified
September 9, 2026
Advisory Details (10)
Auto-updated Aug 12, 2026Image viewer in JupyterLab allows XSS when opening malicious image in new browser tab · Advisory · jupyterlab/jupyterlab · GitHub
https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-gx64-gj6p-pc4cv4.7.0a1
Patch available: jupyterlab/jupyterlab v4.7.0a1 (pre-release)
https://github.com/jupyterlab/jupyterlab/releases/tag/v4.7.0a1v4.6.2
Patch available: jupyterlab/jupyterlab v4.6.2
https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.2v4.5.10
Patch available: jupyterlab/jupyterlab v4.5.10
https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.10Backport of security patches to `4.5.x` branch
Fix merged in jupyterlab/jupyterlab PR #19186 on 2026-07-21 — awaiting tagged release
https://github.com/jupyterlab/jupyterlab/pull/19186Backport of security patches to `4.6.x` branch
Fix merged in jupyterlab/jupyterlab PR #19185 on 2026-07-21 — awaiting tagged release
https://github.com/jupyterlab/jupyterlab/pull/19185Security patches
Fix merged in jupyterlab/jupyterlab PR #19184 on 2026-07-21 — awaiting tagged release
https://github.com/jupyterlab/jupyterlab/pull/19184commit f1beab4a2027 (jupyterlab/jupyterlab)
Fix landed in jupyterlab/jupyterlab commit f1beab4a2027 — awaiting tagged release
https://github.com/jupyterlab/jupyterlab/commit/f1beab4a2027af4719d6edc07d52d6cf5a39a432commit be9303f5bcd5 (jupyterlab/jupyterlab)
Fix landed in jupyterlab/jupyterlab commit be9303f5bcd5 — awaiting tagged release
https://github.com/jupyterlab/jupyterlab/commit/be9303f5bcd5308eaeae953c5a3c903046682c2ccommit 9365f020baec (jupyterlab/jupyterlab)
Fix landed in jupyterlab/jupyterlab commit 9365f020baec — awaiting tagged release
https://github.com/jupyterlab/jupyterlab/commit/9365f020baec5221deaf11535ed554c06637c999Vendor Advisories for CVE-2026-73415(5)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:87410Red Hat Product SecurityCritical
Red Hat Security Advisory: RHOAI 2.25.12 - Red Hat OpenShift AI
- RHSA-2026:84734Red Hat Product SecurityCritical
Red Hat Security Advisory: RHOAI 3.4.5 - Red Hat OpenShift AI
- RHSA-2026:73987Red Hat Product SecurityCritical
Red Hat Security Advisory: RHOAI 3.3.7 - Red Hat OpenShift AI
- RHSA-2026:65126Red Hat Product SecurityHigh
Red Hat Security Advisory: RHOAI 2.25.11 - Red Hat OpenShift AI
- GHSA-gx64-gj6p-pc4cGitHub Security AdvisoriesHigh
JupyterLab: Image viewer allows XSS when opening malicious image in new browser tab
Patch Availability(6)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| redhat | rhoai/odh-workbench-jupyter-trustyai-cpu-py312-rhel9:1792563127 | 2026-10-21 | redhat |
| redhat | rhoai/odh-workbench-jupyter-trustyai-cpu-py312-rhel9:1791829530 | 2026-10-19 | redhat |
| redhat | rhoai/odh-workbench-jupyter-trustyai-cpu-py312-rhel9:1790260954 | 2026-09-30 | redhat |
| redhat | rhoai/odh-workbench-jupyter-trustyai-cpu-py312-rhel9:1788185899 | 2026-09-08 | redhat |
| pip | jupyterlab @ 4.6.2 (fixes >= 4.6.0, <= 4.6.1) | — | ghsa |
| pip | jupyterlab @ 4.5.10 (fixes <= 4.5.9) | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(3 across 3 ecosystems)
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| jupyterlab | 4.0.11+ds1+~cs11.25.27-7 ... 4.4.8+ds1+~3.1.0+~0.16.6+~cs1.4.4-1 (29 versions) |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| jupyterlab | 4.0.11+ds1+~cs11.25.27-7 ... 4.4.8+ds1+~3.1.0+~0.16.6+~cs1.4.4-1 (26 versions) |
| — |
PyPI(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| jupyterlab | 0.0.1 ... 4.6.1 (589 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 53× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 100 of 187 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 87 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-11-01 07:39 UTCGHSA enrichmentGHSA-gx64-gj6p-pc4c · GitHub severity HIGH
- 2026-11-01 07:39 UTCEG score recompute
- 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-28 12:34 UTCEG score recompute
- 2026-10-28 12:34 UTCVendor advisory
- 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-25 14:05 UTCEG score recompute
- 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.7% · 54th percentile
- 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-20 18:36 UTCEG score recompute
- 2026-10-20 18:36 UTCVendor advisory
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-18 03:15 UTCEG score recompute
- 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
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- 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-13 07:54 UTCEG score recompute
- 2026-10-13 07:54 UTCVendor advisory
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-12 15:41 UTCEG score recompute
- 2026-10-11 19:26 UTCEG score recompute
- 2026-10-11 16:42 UTCEG score recompute
- 2026-10-11 14:01 UTCEG score recompute
- 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-10-07 02:23 UTCEG score recompute
- 2026-10-07 02:23 UTCVendor advisory
- 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-10-06 14:09 UTCEG score recompute
- 2026-10-06 14:09 UTCVendor advisory
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-10-05 14:44 UTCEG score recompute
- 2026-10-05 14:44 UTCVendor advisory
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-10-04 22:27 UTCVendor advisory
- 2026-10-04 07:34 UTCVendor advisory
- 2026-10-03 19:56 UTCEG score recompute
- 2026-10-03 19:56 UTCVendor advisory
- 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-10-02 21:58 UTCEG score recompute
- 2026-10-02 21:58 UTCVendor advisory
- 2026-10-02 08:18 UTCEG score recompute
- 2026-10-02 08:18 UTCVendor advisory
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-10-01 09:31 UTCVendor advisory
- 2026-09-30 21:53 UTCEG score recompute
- 2026-09-30 21:53 UTCVendor advisory
- 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-29 04:28 UTCEG score recompute
- 2026-09-29 04:28 UTCVendor advisory
- 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-28 12:54 UTCVendor advisory
- 2026-09-28 01:16 UTCEG score recompute
- 2026-09-28 01:16 UTCVendor advisory
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-27 09:52 UTCEG score recompute
- 2026-09-27 09:52 UTCVendor advisory
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-25 03:39 UTCEG score recompute
- 2026-09-25 03:39 UTCVendor advisory
- 2026-09-24 11:11 UTCVendor advisory
- 2026-09-23 23:33 UTCEG score recompute
- 2026-09-23 23:33 UTCVendor advisory
- 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-09-23 11:29 UTCVendor advisory
- 2026-09-22 23:50 UTCEG score recompute
- 2026-09-22 23:50 UTCVendor advisory
- 2026-09-22 11:56 UTCVendor advisory
- 2026-09-22 00:17 UTCEG score recompute
- 2026-09-22 00:17 UTCVendor advisory
- 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-09-21 12:15 UTCVendor advisory
- 2026-09-21 00:31 UTCEG score recompute
- 2026-09-21 00:31 UTCVendor advisory
- 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-09-20 12:46 UTCVendor advisory
- 2026-09-19 23:51 UTCEG score recompute
- 2026-09-19 23:51 UTCVendor advisory
- 2026-09-19 12:13 UTCVendor advisory
- 2026-09-19 00:33 UTCEG score recompute
- 2026-09-19 00:33 UTCVendor advisory
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-09-18 12:54 UTCVendor advisory
- 2026-09-18 00:31 UTCEG score recompute
- 2026-09-18 00:31 UTCVendor advisory
- 2026-09-17 12:15 UTCVendor advisory
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownPyPI:jupyterlab
Same vendor
10 shownredhat:RHSA-2026:65126 · redhat:RHSA-2026:73987
Frequently asked(5)
What is CVE-2026-73415?
When was the CVE record for CVE-2026-73415 published?
Is CVE-2026-73415 actively exploited?
What is the CVSS score of CVE-2026-73415?
How do I remediate CVE-2026-73415?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-73415
Is Your Infrastructure Affected by CVE-2026-73415?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.