Description
A weakness has been identified in garycourt uri-js up to 4.4.1. This affects the function URI.parse of the file src/schemes/mailto.ts of the component Mailto Header Handler. This manipulation of the argument to causes uncaught exception. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| garycourt | uri-js | 4.4.0, 4.4.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | node-uri-js | No fix yet | — |
| Debian 13 | node-uri-js | No fix yet | — |
| Debian 12 | node-uri-js | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | node-uri-js | No fix yet | — |
| Ubuntu 26.04 LTS | node-uri-js | No fix yet | — |
| Ubuntu 24.04 LTS | node-uri-js | No fix yet | — |
| Ubuntu 22.04 LTS | node-uri-js | No fix yet | — |
| Ubuntu 20.04 LTS | node-uri-js | No fix yet | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | js-jquery | No fix yet | — |
References
- VDB-412124 | garycourt uri-js Mailto Header mailto.ts URI.parse uncaught exception vdb-entry technical-description
- VDB-412124 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-103387 | CVE Analysis and Report third-party-advisory
- Submit #956810 | garycourt uri-js 4.4.1 Missing Undefined Check on Mailto URI 'to' Header Parser third-party-advisory
- https://github.com/garycourt/uri-js/issues/103 exploit issue-tracking
- https://github.com/garycourt/uri-js/ product