Description
When asked to both use a `.netrc` file for credentials and to follow HTTP
redirects, curl could leak the password used for the first host to the
followed-to host under certain circumstances.
This flaw only manifests itself if the netrc file has an entry that matches
the redirect target hostname but the entry either omits just the password or
omits both login and password.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| curl | curl | 8.11.0 – ≤ 8.11.0, 8.10.1 – ≤ 8.10.1, 8.10.0 – ≤ 8.10.0, 8.9.1 – ≤ 8.9.1, 8.9.0 – ≤ 8.9.0, 8.8.0 – ≤ 8.8.0, 8.7.1 – ≤ 8.7.1, 8.7.0 – ≤ 8.7.0, 8.6.0 – ≤ 8.6.0, 8.5.0 – ≤ 8.5.0, 8.4.0 – ≤ 8.4.0, 8.3.0 – ≤ 8.3.0, 8.2.1 – ≤ 8.2.1, 8.2.0 – ≤ 8.2.0, 8.1.2 – ≤ 8.1.2, 8.1.1 – ≤ 8.1.1, 8.1.0 – ≤ 8.1.0, 8.0.… | — |
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 | 8.11.1-1 | — |
| Debian 13 | curl | 8.11.1-1 | — |
| Debian 12 | curl | 7.88.1-10+deb12u10 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | curl | 8.5.0-2ubuntu10.6 | USN-7162-1 |
| Ubuntu 22.04 LTS | curl | 7.81.0-1ubuntu1.20 | USN-7162-1 |
| Ubuntu 20.04 LTS | curl | 7.68.0-1ubuntu2.25 | USN-7162-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | curl | 7.58.0-2ubuntu3.24+esm10 | — |
| Ubuntu Pro 16.04 LTS | curl | 7.47.0-1ubuntu2.19+esm17 | — |
| Ubuntu Pro 14.04 LTS | curl | 7.35.0-1ubuntu2.20+esm21 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | mysql +6 | 8.0.41-2.el9_5 | RHSA-2025:1671 |
| RHEL 8 | mecab +1 | 0.996-2.module+el8.10.0+22857+7f331edd | RHSA-2025:1673 |
| RHEL 8 | mecab-ipadic +1 | 2.7.0.20070801-17.module+el8.10.0+22857+7f331edd | RHSA-2025:1673 |
| RHEL 8 | mysql +6 | 8.0.41-1.module+el8.10.0+22857+7f331edd | RHSA-2025:1673 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | mysql +6 | 8.0.41-2.el9_5 | ALSA-2025:1671 |
| AlmaLinux 8 | mecab +1 | 0.996-2.module_el8.6.0+3340+d764b636 | ALSA-2025:1673 |
| AlmaLinux 8 | mecab-ipadic +1 | 2.7.0.20070801-17.module_el8.10.0+3965+b415b607 | ALSA-2025:1673 |
| AlmaLinux 8 | mysql +6 | 8.0.41-1.module_el8.10.0+3965+b415b607 | ALSA-2025:1673 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | mysql | 8.0.41-2.el9_5 | RLSA-2025:1671 |
| Rocky Linux 8 | mecab | 0.996-2.module+el8.10.0+1676+9b4b6e24 | RLSA-2025:1673 |
| Rocky Linux 8 | mecab-ipadic | 2.7.0.20070801-17.module+el8.10.0+1937+28fbbc83 | RLSA-2025:1673 |
| Rocky Linux 8 | mysql | 8.0.41-1.module+el8.10.0+1937+28fbbc83.0.1 | RLSA-2025:1673 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | curl | 8.6.0-150600.4.15.1 | SUSE-SU-2024:4288-1 |
| SLES 15 SP5 | curl | 8.0.1-150400.5.59.1 | SUSE-SU-2024:4359-1 |
| SLES 12 SP5 | curl | 8.0.1-11.101.1 | SUSE-SU-2024:4284-2, SUSE-SU-2024:4284-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.1 | curl | 8.12.1-slfo.1.1_1.1 | SUSE-SU-2025:20239-1 |
| SLE Micro 6.0 | curl | 8.6.0-5.1 | SUSE-SU-2025:20106-1 |
| SLE Micro 5.5 | curl | 8.0.1-150400.5.59.1 | SUSE-SU-2024:4359-1 |
| SLE Micro 5.4 | curl | 8.0.1-150400.5.59.1 | SUSE-SU-2024:4359-1 |
| SLE Micro 5.3 | curl | 8.0.1-150400.5.59.1 | SUSE-SU-2024:4359-1 |
| SLE Micro 5.2 | curl | 7.66.0-150200.4.81.1 | SUSE-SU-2024:4287-1 |
| SLE Micro 5.1 | curl | 7.66.0-150200.4.81.1 | SUSE-SU-2024:4287-1 |
| SUSE Linux Enterprise Installer Updates 15 SP5 | curl | 8.0.1-150400.5.59.1 | SUSE-SU-2024:4359-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | curl | 8.11.1-1.1 | openSUSE-SU-2024:14575-1 |
| openSUSE Leap 15.6 | curl | 8.6.0-150600.4.15.1 | SUSE-SU-2024:4288-1 |
| openSUSE Leap 15.5 | curl | 8.0.1-150400.5.59.1 | SUSE-SU-2024:4359-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.5 | curl | 8.0.1-150400.5.59.1 | SUSE-SU-2024:4359-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | curl | 8.11.1-r0 | — |
| Alpine v3.23 | curl | 8.11.1-r0 | — |
| Alpine v3.22 | curl | 8.11.1-r0 | — |
| Alpine v3.21 | curl | 8.11.1-r0 | — |
| Alpine v3.20 | curl | 8.11.1-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | curl | 8.11.1-r0 | — |
| Alpine v3.18 | curl | 8.11.1-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | curl +4 | 8.15.0-4.amzn2023.0.1 | ALAS2023-2025-1351 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | cmake | 3.30.3-3 | — |
| Azure Linux 3 | curl | 8.11.1-1 | — |
| Azure Linux 3 | mysql | 8.0.41-1 | — |
| Azure Linux 3 | tensorflow | 2.16.1-7 | — |
| Azure Linux 2 (CBL-Mariner) | cmake | 3.21.4-15 | — |
| Azure Linux 2 (CBL-Mariner) | curl | 8.8.0-4 | — |
| Azure Linux 2 (CBL-Mariner) | mysql | 8.0.41-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | mysql +6 | 8.0.41-2.el9_5 | ELSA-2025-1671 |
| Oracle Linux 8 | mecab +1 | 0.996-2.module+el8.10.0+90521+d5cc5c65 | ELSA-2025-1673 |
| Oracle Linux 8 | mecab-ipadic +1 | 2.7.0.20070801-17.0.1.module+el8.10.0+90521+d5cc5c65 | ELSA-2025-1673 |
| Oracle Linux 8 | mysql +6 | 8.0.41-1.module+el8.10.0+90521+d5cc5c65 | ELSA-2025-1673 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | curl | 8.11.1-r0 | — |
Advisories 36
- WID-SEC-2024-3676 cURL: Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Nov 11, 2026
- ALSA-2025:1671 Important: mysql security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:1673 Important: mysql:8.0 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:1673 Red Hat Security Advisory: mysql:8.0 security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2025:1671 Red Hat Security Advisory: mysql security update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- USN-7162-1 curl vulnerability Ubuntu Security Notices (USN) · Apr 27, 2026
- WID-SEC-2025-0167 Oracle MySQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 6, 2026
- SUSE-SU-2025:20239-1 Security update for curl SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20106-1 Security update for curl SUSE / openSUSE Security Updates · Mar 23, 2026
- ICSA-26-043-03 Siemens COMOS CISA ICS & IT advisories · Mar 12, 2026
- SSA-212953 SSA-212953: Multiple Vulnerabilities in COMOS Siemens ProductCERT · Mar 10, 2026
- ICSA-26-043-06 Siemens SINEC OS CISA ICS & IT advisories · Feb 25, 2026
- SSA-089022 SSA-089022: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.3 Siemens ProductCERT · Feb 24, 2026
- RLSA-2025:1673 Important: mysql:8.0 security update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2024:4288-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4284-2 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4287-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4359-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2025-1351 Moderate: curl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jan 7, 2026
- NCSC-2025-0382 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Dec 9, 2025
- RLSA-2025:1671 Important: mysql security update Rocky Linux Security Advisories · Oct 9, 2025
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- VDE-2025-053 Phoenix Contact: Multiple Vulnerabilities in PLCnext Firmware CERT@VDE · Jul 8, 2025
- openSUSE-SU-2024:14575-1 curl-8.11.1-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- SUSE-SU-2024:4284-1 Security update for curl SUSE / openSUSE Security Updates · May 2, 2025
- NCSC-2025-0128 Kwetsbaarheden verholpen in Oracle Fusion Middleware NCSC-NL (Netherlands) · Apr 16, 2025
- NCSC-2025-0124 Kwetsbaarheden verholpen in Oracle Communications NCSC-NL (Netherlands) · Apr 16, 2025
- NCSC-2025-0123 Kwetsbaarheden verholpen in Oracle Database Producten NCSC-NL (Netherlands) · Apr 16, 2025
- WID-SEC-2025-0824 Oracle Communications Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 15, 2025
- WID-SEC-2025-0818 Oracle Fusion Middleware: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 15, 2025
- WID-SEC-2025-0817 Oracle Hyperion: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 15, 2025
- ELSA-2025-1671 Important: mysql security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Feb 21, 2025
- ELSA-2025-1673 Important: mysql:8.0 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 20, 2025
- NCSC-2025-0024 Kwetsbaarheden verholpen in Oracle MySQL NCSC-NL (Netherlands) · Jan 22, 2025
- NCSC-2025-0020 Kwetsbaarheden verholpen in Oracle Database producten NCSC-NL (Netherlands) · Jan 22, 2025