Description
When asking curl to use a `.netrc` file to find credentials and at the same
time specifying a URL with a username (without a password), like
`https://user@example.com/`, curl could wrongly get and use the password for
*another* user set in the `.netrc` file for that host if such a one exists and
there is no match for the specified user.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| curl | curl | 8.11.1 – < 8.14.2, 8.15.0 – < 8.16.1, 8.17.0 – < 8.20.1, 8.20.0, 8.19.0, 8.18.0, 8.17.0, 8.16.0, 8.15.0, 8.14.1, 8.14.0, 8.13.0, 8.12.1, 8.12.0, 8.11.1 | 8.14.2 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | curl | 8.21.0~rc2-1 | — |
| Debian 13 | curl | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | curl | 8.18.0-1ubuntu2.2 | — |
| Ubuntu 25.10 | curl | 8.14.1-2ubuntu1.4 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | curl +3 | 8.12.1-4.el10_2.6 | RHSA-2026:69125 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | curl +3 | 8.12.1-1.el10_0.10 | RHSA-2026:72506 |
| Red Hat Hardened Images 1 | curl +3 | 8.21.0-0.1.hum1 | RHSA-2026:29017 |
| Red Hat Hardened Images 1 | rust +18 | 1.96.1-1.hum1 | RHSA-2026:34975 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | curl +3 | 8.12.1-4.el10_2.6 | ALSA-2026:69125 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | curl | 8.12.1-4.el10_2.6 | RLSA-2026:69125 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | curl | 8.14.1-150700.7.23.1 | SUSE-SU-2026:3798-1 |
| SLES 15 SP6 | curl | 8.14.1-150600.4.51.1 | SUSE-SU-2026:4047-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | curl +1 | 8.14.1-160000.9.1 | SUSE-SU-2026:23638-1 |
| SLES for SAP 15 SP6 | curl | 8.14.1-150600.4.51.1 | SUSE-SU-2026:4047-1 |
| SLES 16.0 | curl +1 | 8.14.1-160000.9.1 | SUSE-SU-2026:23638-1 |
| SLE Micro 6.2 | curl | 8.14.1-160000.9.1 | SUSE-SU-2026:23498-1 |
| SLE Micro 6.1 | curl | 8.14.1-slfo.1.1_9.1 | SUSE-SU-2026:23350-1 |
| SLE Micro 6.0 | curl | 8.14.1-8.1 | SUSE-SU-2026:23361-1 |
| SLE Micro 5.5 | curl | 8.14.1-150400.5.91.1 | SUSE-SU-2026:3958-1 |
| SLE Micro 5.4 | curl | 8.14.1-150400.5.91.1 | SUSE-SU-2026:3958-1 |
| SLE Micro 5.3 | curl | 8.14.1-150400.5.91.1 | SUSE-SU-2026:3958-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | curl | 8.21.0-1.1 | openSUSE-SU-2026:11230-1 |
| openSUSE Leap 16.0 | curl | 8.14.1-160000.9.1 | openSUSE-SU-2026:21774-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | curl | 8.21.0-r0 | — |
| Alpine v3.23 | curl | 8.22.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | curl +4 | 8.21.0-5.amzn2023.0.1 | ALAS2023-2026-2132 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | curl | 8.11.1-10 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | curl +3 | 8.12.1-4.el10_2.6 | ELSA-2026-69125 |
Advisories 18
- WID-SEC-2026-2065 cURL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- ALSA-2026:69125 Important: curl security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:34975 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:29017 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:72506 Red Hat Security Advisory: curl security update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2026:69125 Red Hat Security Advisory: curl security update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- SUSE-SU-2026:23638-1 Security update for curl SUSE / openSUSE Security Updates · Sep 29, 2026
- ELSA-2026-69125 Important: curl security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Sep 23, 2026
- RLSA-2026:69125 Important: curl security update Rocky Linux Security Advisories · Sep 22, 2026
- SUSE-SU-2026:23498-1 Security update for curl SUSE / openSUSE Security Updates · Sep 14, 2026
- ALAS2023-2026-2132 Moderate: curl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 14, 2026
- SUSE-SU-2026:4047-1 Security update for curl SUSE / openSUSE Security Updates · Sep 13, 2026
- SUSE-SU-2026:3958-1 Security update for curl SUSE / openSUSE Security Updates · Sep 13, 2026
- SUSE-SU-2026:23361-1 Security update for curl SUSE / openSUSE Security Updates · Sep 10, 2026
- SUSE-SU-2026:23350-1 Security update for curl SUSE / openSUSE Security Updates · Sep 10, 2026
- openSUSE-SU-2026:21774-1 Security update for curl SUSE / openSUSE Security Updates · Sep 9, 2026
- SUSE-SU-2026:3798-1 Security update for curl SUSE / openSUSE Security Updates · Aug 27, 2026
- openSUSE-SU-2026:11230-1 curl-8.21.0-1.1 on GA media SUSE / openSUSE Security Updates · Jul 10, 2026