CVE-2026-5773

Name
CVE-2026-5773
Description
libcurl might in some circumstances reuse the wrong connection for SMB(S) transfers. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criteria must be met. Due to a logical error in the code, a network transfer operation that was requested by an application could wrongfully reuse an existing SMB connection to the same server that was using a different 'share' than the new subsequent transfer should. This could in unlucky situations lead to the download of the wrong file or the upload of a file to the wrong place. When this happens, the same credentials are used and the server name is the same.
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
Patch https://curl.se/docs/CVE-2026-5773.html
Vendor Advisory https://curl.se/docs/CVE-2026-5773.json
Exploit https://hackerone.com/reports/3650689
Mailing List http://www.openwall.com/lists/oss-security/2026/04/29/9

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* curl >= 7.40.0 < 8.20.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
curl edge-main 8.20.0-r0 Achill Gilgenast <achill@achill.org> fixed
curl edge-main 8.19.0-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
curl edge-main 8.18.0-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
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 3.23-main 8.19.0-r0 Achill Gilgenast <achill@achill.org> 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 3.21-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 3.20-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 3.19-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