VDB-377038 · CVE-2026-10037 · GCVE-0-2026-10037

Canonical Ubuntu up to 3.74ubuntu1.0/3.75ubuntu1.0 MIME input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.54

Summaryinfo

A vulnerability was found in Canonical Ubuntu up to 3.74ubuntu1.0/3.75ubuntu1.0 and classified as problematic. This affects an unknown part of the component MIME Handler. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2026-10037. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic was found in Canonical Ubuntu up to 3.74ubuntu1.0/3.75ubuntu1.0. This vulnerability affects an unknown code of the component MIME Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at bugs.launchpad.net. This vulnerability was named CVE-2026-10037 since 05/28/2026. The exploitation appears to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available.

Upgrading to version 3.70+nmu1ubuntu1.22.04.1, 3.70+nmu1ubuntu1.24.04.1, 3.74ubuntu1.1 or 3.75ubuntu1.1 eliminates this vulnerability.

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Productinfo

Vendor

Canonical

Name

Ubuntu

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Upgrade: Ubuntu 3.70+nmu1ubuntu1.22.04.1/3.70+nmu1ubuntu1.24.04.1/3.74ubuntu1.1/3.75ubuntu1.1

Timelineinfo

05/28/2026 CVE reserved
07/08/2026 +41 days VulDB entry created
07/09/2026 +0 days Advisory disclosed
07/09/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: bugs.launchpad.net
Status: Confirmed

CVE: CVE-2026-10037 (🔒)
GCVE (CVE): GCVE-0-2026-10037
GCVE (VulDB): GCVE-100-377038

Entryinfo

Created: 07/09/2026 00:08
Changes: 07/09/2026 00:08 (53)
Complete: 🔍
Cache ID: 216::103