CVE-2026-10037

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-09. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

A fix is available — apply it.

A sandbox escape vulnerability exists in the OpenJDK packages provided in Ubuntu. The .jar MIME handlers installed by these packages execute files marked as executable when the mailcap package is installed. A compromised or malicious sandboxed application with access to the OpenURI portal via xdg-desktop-portal-gtk can write a malicious .jar file to the host file system, set its executable bit, and trigger the handler to execute arbitrary code outside of the sandbox environment.

CVSS v3
8.8
EG Score
8.8(high)
EPSS
2.2%
KEV
Not listed

Published

July 8, 2026

Last Modified

July 10, 2026

Advisory Details (1)

Auto-updated Jul 8, 2026
No patch confirmed yet.
generic

Bug #2153100 “.jar MIME handler allows escaping Firefox's Snap s...” : Bugs : openjdk-25 package : Ubuntu

https://bugs.launchpad.net/ubuntu/+source/openjdk-25/+bug/2153100

Vendor Advisories for CVE-2026-10037(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntumailcap (3.75ubuntu1.1) @ resolute2026-07-12ubuntu

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.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 26× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-07-12 14:28 UTCEG score recompute
  2. 2026-07-12 14:28 UTCVendor advisory
  3. 2026-07-12 14:28 UTCGHSA enrichment
  4. 2026-07-12 05:46 UTCEPSS rescore
  5. 2026-07-12 01:46 UTCEG score recompute
  6. 2026-07-12 01:46 UTCVendor advisory
  7. 2026-07-12 01:46 UTCGHSA enrichment
  8. 2026-07-11 13:05 UTCEG score recompute
  9. 2026-07-11 13:05 UTCVendor advisory
  10. 2026-07-11 13:05 UTCGHSA enrichment
  11. 2026-07-11 08:27 UTCEPSS rescore
  12. 2026-07-11 00:23 UTCEG score recompute
  13. 2026-07-11 00:23 UTCVendor advisory
  14. 2026-07-11 00:23 UTCGHSA enrichment
  15. 2026-07-10 11:42 UTCEG score recompute
  16. 2026-07-10 11:42 UTCVendor advisory
  17. 2026-07-10 11:42 UTCGHSA enrichment
  18. 2026-07-09 23:01 UTCEG score recompute
  19. 2026-07-09 23:01 UTCVendor advisory
  20. 2026-07-09 23:01 UTCGHSA enrichment
  21. 2026-07-09 19:10 UTCEPSS rescore
  22. 2026-07-09 10:20 UTCEG score recompute
  23. 2026-07-09 10:20 UTCGHSA enrichment
  24. 2026-07-08 21:39 UTCEG score recompute
  25. 2026-07-08 21:39 UTCVendor advisory
Show 1 more
  1. 2026-07-08 21:39 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-10037?
CVE-2026-10037 is a high vulnerability published on July 8, 2026. A sandbox escape vulnerability exists in the OpenJDK packages provided in Ubuntu. The .jar MIME handlers installed by these packages execute files marked as executable when the mailcap package is installed. A compromised or malicious sandboxed application with access to the OpenURI portal via…
When was CVE-2026-10037 disclosed?
CVE-2026-10037 was first published in the National Vulnerability Database on July 8, 2026, with the most recent update on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-10037 actively exploited?
CVE-2026-10037 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-10037?
CVE-2026-10037 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-10037?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-10037, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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