CVE-2026-3784

Name
CVE-2026-3784
Description
curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
2499f714-1537-4658-8207-48ae4bb9eae9 https://curl.se/docs/CVE-2026-3784.html
2499f714-1537-4658-8207-48ae4bb9eae9 https://curl.se/docs/CVE-2026-3784.json
2499f714-1537-4658-8207-48ae4bb9eae9 https://hackerone.com/reports/3584903
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2026/03/11/3

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* curl >= 7.7 < 8.18.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
curl edge-main 8.19.0-r0 Achill Gilgenast <achill@achill.org> fixed
curl edge-main 8.17.0-r1 Achill Gilgenast <achill@achill.org> possibly vulnerable
curl edge-main 8.17.0-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
curl edge-main 8.16.0-r2 Achill Gilgenast <achill@achill.org> possibly vulnerable
curl edge-main 8.16.0-r1 Achill Gilgenast <achill@achill.org> possibly vulnerable
curl edge-main 8.16.0-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
curl edge-main 8.15.0-r2 Achill Gilgenast <achill@achill.org> possibly vulnerable
curl edge-main 8.15.0-r1 Achill Gilgenast <achill@achill.org> possibly vulnerable
curl edge-main 8.15.0-r0 fossdd <fossdd@pwned.life> possibly vulnerable
curl edge-main 8.14.1-r2 fossdd <fossdd@pwned.life> possibly vulnerable
curl edge-main 8.14.1-r1 fossdd <fossdd@pwned.life> possibly vulnerable
curl edge-main 8.14.1-r0 fossdd <fossdd@pwned.life> possibly vulnerable
curl edge-main 8.14.0-r2 fossdd <fossdd@pwned.life> possibly vulnerable
curl edge-main 8.14.0-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.14.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.13.0-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.13.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.12.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.12.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.12.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.11.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.11.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.11.0-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.11.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.10.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.9.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.9.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.7.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.6.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.4.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.3.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.1.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 8.0.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 7.88.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 7.87.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 7.86.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 7.85.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 7.84.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 7.83.1-r0 None possibly vulnerable
curl edge-main 7.83.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 7.79.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 7.78.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 7.77.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl edge-main 7.76.0-r0 None possibly vulnerable
curl edge-main 7.74.0-r0 None possibly vulnerable
curl edge-main 7.72.0-r0 None possibly vulnerable
curl edge-main 7.71.0-r0 None possibly vulnerable
curl edge-main 7.66.0-r0 None possibly vulnerable
curl edge-main 7.65.0-r0 None possibly vulnerable
curl edge-main 7.64.0-r0 None possibly vulnerable
curl edge-main 7.62.0-r0 None possibly vulnerable
curl edge-main 7.61.1-r0 None possibly vulnerable
curl edge-main 7.61.0-r0 None possibly vulnerable
curl edge-main 7.60.0-r0 None possibly vulnerable
curl edge-main 7.59.0-r0 None possibly vulnerable
curl edge-main 7.57.0-r0 None possibly vulnerable
curl edge-main 7.56.1-r0 None possibly vulnerable
curl edge-main 7.55.0-r0 None possibly vulnerable
curl edge-main 7.54.0-r0 None possibly vulnerable
curl edge-main 7.53.1-r2 None possibly vulnerable
curl edge-main 7.53.0-r0 None possibly vulnerable
curl edge-main 7.52.1-r0 None possibly vulnerable
curl edge-main 7.51.0-r0 None possibly vulnerable
curl edge-main 7.50.3-r0 None possibly vulnerable
curl edge-main 7.50.2-r0 None possibly vulnerable
curl edge-main 7.50.1-r0 None possibly vulnerable
curl edge-main 7.36.0-r0 None possibly vulnerable
curl 3.23-main 8.17.0-r1 Achill Gilgenast <achill@achill.org> possibly vulnerable
curl 3.22-main 8.14.1-r2 fossdd <fossdd@pwned.life> possibly vulnerable
curl 3.22-main 8.14.1-r1 fossdd <fossdd@pwned.life> possibly vulnerable
curl 3.22-main 8.14.1-r0 None possibly vulnerable
curl 3.22-main 8.14.0-r0 None possibly vulnerable
curl 3.22-main 8.12.0-r0 None possibly vulnerable
curl 3.22-main 8.11.1-r0 None possibly vulnerable
curl 3.22-main 8.11.0-r0 None possibly vulnerable
curl 3.22-main 8.10.0-r0 None possibly vulnerable
curl 3.22-main 8.9.1-r0 None possibly vulnerable
curl 3.22-main 8.9.0-r0 None possibly vulnerable
curl 3.22-main 8.7.1-r0 None possibly vulnerable
curl 3.22-main 8.6.0-r0 None possibly vulnerable
curl 3.22-main 8.5.0-r0 None possibly vulnerable
curl 3.22-main 8.4.0-r0 None possibly vulnerable
curl 3.22-main 8.3.0-r0 None possibly vulnerable
curl 3.22-main 8.1.0-r0 None possibly vulnerable
curl 3.22-main 8.0.0-r0 None possibly vulnerable
curl 3.22-main 7.88.0-r0 None possibly vulnerable
curl 3.22-main 7.87.0-r0 None possibly vulnerable
curl 3.22-main 7.86.0-r0 None possibly vulnerable
curl 3.22-main 7.85.0-r0 None possibly vulnerable
curl 3.22-main 7.84.0-r0 None possibly vulnerable
curl 3.22-main 7.83.1-r0 None possibly vulnerable
curl 3.22-main 7.83.0-r0 None possibly vulnerable
curl 3.22-main 7.79.0-r0 None possibly vulnerable
curl 3.22-main 7.78.0-r0 None possibly vulnerable
curl 3.22-main 7.77.0-r0 None possibly vulnerable
curl 3.22-main 7.76.0-r0 None possibly vulnerable
curl 3.22-main 7.74.0-r0 None possibly vulnerable
curl 3.22-main 7.72.0-r0 None possibly vulnerable
curl 3.22-main 7.71.0-r0 None possibly vulnerable
curl 3.22-main 7.66.0-r0 None possibly vulnerable
curl 3.22-main 7.65.0-r0 None possibly vulnerable
curl 3.22-main 7.64.0-r0 None possibly vulnerable
curl 3.22-main 7.62.0-r0 None possibly vulnerable
curl 3.22-main 7.61.1-r0 None possibly vulnerable
curl 3.22-main 7.61.0-r0 None possibly vulnerable
curl 3.22-main 7.60.0-r0 None possibly vulnerable
curl 3.22-main 7.59.0-r0 None possibly vulnerable
curl 3.22-main 7.57.0-r0 None possibly vulnerable
curl 3.22-main 7.56.1-r0 None possibly vulnerable
curl 3.22-main 7.55.0-r0 None possibly vulnerable
curl 3.22-main 7.54.0-r0 None possibly vulnerable
curl 3.22-main 7.53.1-r2 None possibly vulnerable
curl 3.22-main 7.53.0-r0 None possibly vulnerable
curl 3.22-main 7.52.1-r0 None possibly vulnerable
curl 3.22-main 7.51.0-r0 None possibly vulnerable
curl 3.22-main 7.50.3-r0 None possibly vulnerable
curl 3.22-main 7.50.2-r0 None possibly vulnerable
curl 3.22-main 7.50.1-r0 None possibly vulnerable
curl 3.22-main 7.36.0-r0 None possibly vulnerable
curl 3.21-main 8.14.1-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.21-main 8.14.1-r0 None possibly vulnerable
curl 3.21-main 8.14.0-r0 None possibly vulnerable
curl 3.21-main 8.12.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.21-main 8.12.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.21-main 8.12.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.21-main 8.11.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.21-main 8.11.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.21-main 8.11.0-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.21-main 8.11.0-r0 None possibly vulnerable
curl 3.21-main 8.10.0-r0 None possibly vulnerable
curl 3.21-main 8.9.1-r0 None possibly vulnerable
curl 3.21-main 8.9.0-r0 None possibly vulnerable
curl 3.21-main 8.7.1-r0 None possibly vulnerable
curl 3.21-main 8.6.0-r0 None possibly vulnerable
curl 3.21-main 8.5.0-r0 None possibly vulnerable
curl 3.21-main 8.4.0-r0 None possibly vulnerable
curl 3.21-main 8.3.0-r0 None possibly vulnerable
curl 3.21-main 8.1.0-r0 None possibly vulnerable
curl 3.21-main 8.0.0-r0 None possibly vulnerable
curl 3.21-main 7.88.0-r0 None possibly vulnerable
curl 3.21-main 7.87.0-r0 None possibly vulnerable
curl 3.21-main 7.86.0-r0 None possibly vulnerable
curl 3.21-main 7.85.0-r0 None possibly vulnerable
curl 3.21-main 7.84.0-r0 None possibly vulnerable
curl 3.21-main 7.83.1-r0 None possibly vulnerable
curl 3.21-main 7.83.0-r0 None possibly vulnerable
curl 3.21-main 7.79.0-r0 None possibly vulnerable
curl 3.21-main 7.78.0-r0 None possibly vulnerable
curl 3.21-main 7.77.0-r0 None possibly vulnerable
curl 3.21-main 7.76.0-r0 None possibly vulnerable
curl 3.21-main 7.74.0-r0 None possibly vulnerable
curl 3.21-main 7.72.0-r0 None possibly vulnerable
curl 3.21-main 7.71.0-r0 None possibly vulnerable
curl 3.21-main 7.66.0-r0 None possibly vulnerable
curl 3.21-main 7.65.0-r0 None possibly vulnerable
curl 3.21-main 7.64.0-r0 None possibly vulnerable
curl 3.21-main 7.62.0-r0 None possibly vulnerable
curl 3.21-main 7.61.1-r0 None possibly vulnerable
curl 3.21-main 7.61.0-r0 None possibly vulnerable
curl 3.21-main 7.60.0-r0 None possibly vulnerable
curl 3.21-main 7.59.0-r0 None possibly vulnerable
curl 3.21-main 7.57.0-r0 None possibly vulnerable
curl 3.21-main 7.56.1-r0 None possibly vulnerable
curl 3.21-main 7.55.0-r0 None possibly vulnerable
curl 3.21-main 7.54.0-r0 None possibly vulnerable
curl 3.21-main 7.53.1-r2 None possibly vulnerable
curl 3.21-main 7.53.0-r0 None possibly vulnerable
curl 3.21-main 7.52.1-r0 None possibly vulnerable
curl 3.21-main 7.51.0-r0 None possibly vulnerable
curl 3.21-main 7.50.3-r0 None possibly vulnerable
curl 3.21-main 7.50.2-r0 None possibly vulnerable
curl 3.21-main 7.50.1-r0 None possibly vulnerable
curl 3.21-main 7.36.0-r0 None possibly vulnerable
curl 3.20-main 8.14.1-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.20-main 8.14.1-r0 None possibly vulnerable
curl 3.20-main 8.14.0-r0 None possibly vulnerable
curl 3.20-main 8.12.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.20-main 8.12.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.20-main 8.11.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.20-main 8.11.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.20-main 8.11.0-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.20-main 8.11.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.20-main 8.10.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.20-main 8.9.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.20-main 8.9.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.20-main 8.7.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.20-main 8.6.0-r0 None possibly vulnerable
curl 3.20-main 8.5.0-r0 None possibly vulnerable
curl 3.20-main 8.4.0-r0 None possibly vulnerable
curl 3.20-main 8.3.0-r0 None possibly vulnerable
curl 3.20-main 8.1.0-r0 None possibly vulnerable
curl 3.20-main 8.0.0-r0 None possibly vulnerable
curl 3.20-main 7.88.0-r0 None possibly vulnerable
curl 3.20-main 7.87.0-r0 None possibly vulnerable
curl 3.20-main 7.86.0-r0 None possibly vulnerable
curl 3.20-main 7.85.0-r0 None possibly vulnerable
curl 3.20-main 7.84.0-r0 None possibly vulnerable
curl 3.20-main 7.83.1-r0 None possibly vulnerable
curl 3.20-main 7.83.0-r0 None possibly vulnerable
curl 3.20-main 7.79.0-r0 None possibly vulnerable
curl 3.20-main 7.78.0-r0 None possibly vulnerable
curl 3.20-main 7.77.0-r0 None possibly vulnerable
curl 3.20-main 7.76.0-r0 None possibly vulnerable
curl 3.20-main 7.74.0-r0 None possibly vulnerable
curl 3.20-main 7.72.0-r0 None possibly vulnerable
curl 3.20-main 7.71.0-r0 None possibly vulnerable
curl 3.20-main 7.66.0-r0 None possibly vulnerable
curl 3.20-main 7.65.0-r0 None possibly vulnerable
curl 3.20-main 7.64.0-r0 None possibly vulnerable
curl 3.20-main 7.62.0-r0 None possibly vulnerable
curl 3.20-main 7.61.1-r0 None possibly vulnerable
curl 3.20-main 7.61.0-r0 None possibly vulnerable
curl 3.20-main 7.60.0-r0 None possibly vulnerable
curl 3.20-main 7.59.0-r0 None possibly vulnerable
curl 3.20-main 7.57.0-r0 None possibly vulnerable
curl 3.20-main 7.56.1-r0 None possibly vulnerable
curl 3.20-main 7.55.0-r0 None possibly vulnerable
curl 3.20-main 7.54.0-r0 None possibly vulnerable
curl 3.20-main 7.53.1-r2 None possibly vulnerable
curl 3.20-main 7.53.0-r0 None possibly vulnerable
curl 3.20-main 7.52.1-r0 None possibly vulnerable
curl 3.20-main 7.51.0-r0 None possibly vulnerable
curl 3.20-main 7.50.3-r0 None possibly vulnerable
curl 3.20-main 7.50.2-r0 None possibly vulnerable
curl 3.20-main 7.50.1-r0 None possibly vulnerable
curl 3.20-main 7.36.0-r0 None possibly vulnerable
curl 3.19-main 8.14.1-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.19-main 8.14.1-r0 None possibly vulnerable
curl 3.19-main 8.14.0-r0 None possibly vulnerable
curl 3.19-main 8.12.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.19-main 8.12.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.19-main 8.11.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.19-main 8.11.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.19-main 8.11.0-r0 None possibly vulnerable
curl 3.19-main 8.10.0-r0 None possibly vulnerable
curl 3.19-main 8.9.1-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.19-main 8.9.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.19-main 8.9.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.19-main 8.7.1-r0 None possibly vulnerable
curl 3.19-main 8.6.0-r0 None possibly vulnerable
curl 3.19-main 8.5.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
curl 3.19-main 8.4.0-r0 None possibly vulnerable
curl 3.19-main 8.3.0-r0 None possibly vulnerable
curl 3.19-main 8.1.0-r0 None possibly vulnerable
curl 3.19-main 8.0.0-r0 None possibly vulnerable
curl 3.19-main 7.88.0-r0 None possibly vulnerable
curl 3.19-main 7.87.0-r0 None possibly vulnerable
curl 3.19-main 7.86.0-r0 None possibly vulnerable
curl 3.19-main 7.85.0-r0 None possibly vulnerable
curl 3.19-main 7.84.0-r0 None possibly vulnerable
curl 3.19-main 7.83.1-r0 None possibly vulnerable
curl 3.19-main 7.83.0-r0 None possibly vulnerable
curl 3.19-main 7.79.0-r0 None possibly vulnerable
curl 3.19-main 7.78.0-r0 None possibly vulnerable
curl 3.19-main 7.77.0-r0 None possibly vulnerable
curl 3.19-main 7.76.0-r0 None possibly vulnerable
curl 3.19-main 7.74.0-r0 None possibly vulnerable
curl 3.19-main 7.72.0-r0 None possibly vulnerable
curl 3.19-main 7.71.0-r0 None possibly vulnerable
curl 3.19-main 7.66.0-r0 None possibly vulnerable
curl 3.19-main 7.65.0-r0 None possibly vulnerable
curl 3.19-main 7.64.0-r0 None possibly vulnerable
curl 3.19-main 7.62.0-r0 None possibly vulnerable
curl 3.19-main 7.61.1-r0 None possibly vulnerable
curl 3.19-main 7.61.0-r0 None possibly vulnerable
curl 3.19-main 7.60.0-r0 None possibly vulnerable
curl 3.19-main 7.59.0-r0 None possibly vulnerable
curl 3.19-main 7.57.0-r0 None possibly vulnerable
curl 3.19-main 7.56.1-r0 None possibly vulnerable
curl 3.19-main 7.55.0-r0 None possibly vulnerable
curl 3.19-main 7.54.0-r0 None possibly vulnerable
curl 3.19-main 7.53.1-r2 None possibly vulnerable
curl 3.19-main 7.53.0-r0 None possibly vulnerable
curl 3.19-main 7.52.1-r0 None possibly vulnerable
curl 3.19-main 7.51.0-r0 None possibly vulnerable
curl 3.19-main 7.50.3-r0 None possibly vulnerable
curl 3.19-main 7.50.2-r0 None possibly vulnerable
curl 3.19-main 7.50.1-r0 None possibly vulnerable
curl 3.19-main 7.36.0-r0 None possibly vulnerable