# CVE-2021-27515: node-url-parse: url-parse before 1.5.0 mishandles certain uses of backslash such as http:\/ and interprets the URI as a relative path.

CVE-2021-27515 is fixed in node-url-parse on 1 platform, first by node-url-parse 1.2.0-1ubuntu0.1, released February 21, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-27515
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0196
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 21, 2021

## Description

url-parse before 1.5.0 mishandles certain uses of backslash such as http:\/ and interprets the URI as a relative path.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-url-parse Ubuntu 18.04.6 LTS (bionic) | 1.2.0-1ubuntu0.1 | [node-url-parse 1.2.0-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-node-url-parse-1.2.0-1ubuntu0.1.md) | Feb 21, 2022 |
| Linux | node-url-parse Ubuntu 20.04 LTS (focal) | 1.4.7-3ubuntu0.1 | [node-url-parse 1.4.7-3ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-node-url-parse-1.4.7-3ubuntu0.1.md) | Feb 21, 2022 |

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Data as of 2026-11-09T19:38:12Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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