CVE-2021-27515
MEDIUMCVSS 5.3/10EPSS 1.96%
Last modified
CVE-2021-27515 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. url-parse before 1.5.0 mishandles certain uses of backslash such as http:\/ and interprets the URI as a relative path.. EPSS estimates a 1.96% chance of exploitation in the next 30 days.
Description
url-parse before 1.5.0 mishandles certain uses of backslash such as http:\/ and interprets the URI as a relative path.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Url-Parse Project | Url-Parse | < 1.5.0 |
References
- https://advisory.checkmarx.net/advisory/CX-2021-4306Exploit, Third Party Advisory
- https://github.com/unshiftio/url-parse/commit/d1e7e8822f26e8a49794b757123b51386325b2b0Patch, Third Party Advisory
- https://github.com/unshiftio/url-parse/compare/1.4.7...1.5.0Patch, Third Party Advisory
- https://github.com/unshiftio/url-parse/pull/197Patch, Third Party Advisory
- https://advisory.checkmarx.net/advisory/CX-2021-4306Exploit, Third Party Advisory
- https://github.com/unshiftio/url-parse/commit/d1e7e8822f26e8a49794b757123b51386325b2b0Patch, Third Party Advisory
- https://github.com/unshiftio/url-parse/compare/1.4.7...1.5.0Patch, Third Party Advisory
- https://github.com/unshiftio/url-parse/pull/197Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-27515?
url-parse before 1.5.0 mishandles certain uses of backslash such as http:\/ and interprets the URI as a relative path.
How severe is CVE-2021-27515?
CVE-2021-27515 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.96% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27515?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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Are you affected by CVE-2021-27515?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST