CVE-2021-27515

mediumpriority · track · 22EPSS 0.020 · 80 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.96% (80th) EPSS

CVSS 5 · medium

Is it mine?

3 products

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

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

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · OSV

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

The CWE weakness classes this flaw belongs to.

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
url-parse project url-parse< 1.5.0nvdUScpe:2.3:a:url-parse_project:url-parse:*:*:*:*:*:*:*:*
npm url-parse0.1.0 → 1.5.0osvUSpkg:npm/url-parse

Vendor and ecosystem advisories describing this.

GHSA-9m6j-fcg5-2442Path traversal in url-parse2021-05-06ghsa · osvUS
url-parse before 1.5.0 mishandles certain uses of backslash such as http:\/ and interprets the URI as a relative path.

Other names and identifiers for this entity.

Which sources assert this record, and when.

published 2021-02-22modified 2026-06-17

External citations — patches, advisories, analysis.

scry

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