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Vulnerability record · CVE-2020-8177 · published 14 December 2020

CVE-2020-8177: Haxx curl injection vulnerability

Haxx · Curl

curl 7.20.0 through 7.70.0 is vulnerable to improper restriction of names for files and other resources that can lead too overwriting a local file when the -J flag is used.

7.8 CVSS 3.1 High EPSS 1.3% · top 31.8% CWE-99 · CWE-99CWE-74 · Injection
7.8CVSS 3.1 base score, v2 4.6
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
10Affected product versions listed by NVD
10References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

curl 7.20.0 through 7.70.0 is vulnerable to improper restriction of names for files and other resources that can lead too overwriting a local file when the -J flag is used.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

10 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf PatchThird Party Advisory
https://curl.se/docs/CVE-2020-8177.html Vendor Advisory
https://hackerone.com/reports/887462 ExploitThird Party Advisory
https://www.debian.org/security/2021/dsa-4881 Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html PatchThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf PatchThird Party Advisory
https://curl.se/docs/CVE-2020-8177.html Vendor Advisory
https://hackerone.com/reports/887462 ExploitThird Party Advisory
https://www.debian.org/security/2021/dsa-4881 Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-8177), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.