Description
When a protocol selection parameter option disables all protocols without adding any then the default set of protocols would remain in the allowed set due to an error in the logic for removing protocols. The below command would perform a request to curl.se with a plaintext protocol which has been explicitly disabled. curl --proto -all,-http http://curl.se The flaw is only present if the set of selected protocols disables the entire set of available protocols, in itself a command with no practical use and therefore unlikely to be encountered in real situations. The curl security team has thus assessed this to be low severity bug.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| curl | curl | 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, 8.0.1 – ≤ 8.0.1, 8.0.0 – ≤ 8.0.0, 7.88.1 – ≤ 7.88.1, 7.88.0 – ≤ 7.88.0, 7.87.0 – ≤ 7.87.0, 7.86.0 – ≤ 7.86.0, 7.85.0 – ≤ 7.85.0 | — |
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 | 8.7.1-1 | — |
| Debian 13 | curl | 8.7.1-1 | — |
| Debian 12 | curl | 7.88.1-10+deb12u6 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | curl | 8.5.0-2ubuntu10.1 | USN-6718-3 |
| Ubuntu 22.04 LTS | curl | 7.81.0-1ubuntu1.16 | USN-6718-1 |
| Ubuntu 20.04 LTS | curl | 7.68.0-1ubuntu2.22 | USN-6718-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat JBoss Core Services 1 | jbcs-httpd24-curl +2 | 8.7.1-2.el7jbcs | RHSA-2024:2693 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-httpd +6 | 2.4.57-10.el7jbcs | RHSA-2024:2693 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_http2 | 1.15.19-37.el7jbcs | RHSA-2024:2693 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_jk +1 | 1.2.49-6.redhat_1.el7jbcs | RHSA-2024:2693 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_md | 1:2.4.24-6.el7jbcs | RHSA-2024:2693 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_proxy_cluster | 1.3.20-4.el7jbcs | RHSA-2024:2693 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_security | 2.9.3-36.el7jbcs | RHSA-2024:2693 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_ssl +1 | 1:2.4.57-10.el7jbcs | RHSA-2024:2693 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-nghttp2 +1 | 1.43.0-13.el7jbcs | RHSA-2024:2693 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-1 |
| SLES 15 SP4 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-2 |
| SLES 12 SP5 | curl | 8.0.1-11.86.2 | SUSE-SU-2024:1150-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-2 |
| SLES for SAP 12 SP5 | curl | 8.0.1-11.86.2 | SUSE-SU-2024:1150-1 |
| SLE Micro 6.0 | curl | 8.6.0-3.1 | SUSE-SU-2025:20029-1 |
| SLE Micro 5.5 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-3, SUSE-SU-2024:1151-1 |
| SLE Micro 5.4 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-1 |
| SLE Micro 5.3 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-1 |
| SLE Micro 5.2 | curl | 7.66.0-150200.4.69.1 | SUSE-SU-2024:1120-1 |
| SLE Micro 5.1 | curl | 7.66.0-150200.4.69.1 | SUSE-SU-2024:1120-1 |
| SLE HPC 15 SP4 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-2 |
| SUSE Manager Server 4.3 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-2 |
| SUSE Manager Proxy 4.3 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-2 |
| SUSE Linux Enterprise Installer Updates 15 SP5 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-1 |
| SUSE Linux Enterprise Installer Updates 15 SP4 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | curl | 8.7.1-1.1 | openSUSE-SU-2024:13805-1 |
| openSUSE Leap 15.5 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.4 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-1 |
| openSUSE Leap Micro 5.3 | curl | 8.0.1-150400.5.44.1 | SUSE-SU-2024:1151-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | curl | 8.7.1-r0 | — |
| Alpine v3.23 | curl | 8.7.1-r0 | — |
| Alpine v3.22 | curl | 8.7.1-r0 | — |
| Alpine v3.21 | curl | 8.7.1-r0 | — |
| Alpine v3.20 | curl | 8.7.1-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | curl | 8.7.1-r0 | — |
| Alpine v3.18 | curl | 8.7.1-r0 | — |
| Alpine v3.17 | curl | 8.7.1-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | curl +4 | 8.5.0-1.amzn2023.0.4 | ALAS2023-2024-596 |
| Amazon Linux 2 | curl +2 | 8.3.0-1.amzn2.0.7 | ALAS2-2024-2526 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | cmake | 3.30.3-2 | — |
| Azure Linux 3 | curl | 8.8.0-1 | — |
| Azure Linux 3 | mysql | 8.0.40-1 | — |
| Azure Linux 2 (CBL-Mariner) | curl | 8.8.0-1 | — |
| Azure Linux 2 (CBL-Mariner) | mysql | 8.0.40-1 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | curl | 8.7.1-r0 | — |
Advisories 25
- RHSA-2024:2693 Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.57 SP4 security update Red Hat Security Advisories (RHSA) · Oct 15, 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
- WID-SEC-2024-0726 cURL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 8, 2026
- USN-6718-1 curl vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-6718-3 curl vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- SUSE-SU-2025:20029-1 Security update for curl SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2024:1151-2 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1151-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13805-1 curl-8.7.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1120-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1151-3 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1150-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-1725 Apple macOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 11, 2026
- WID-SEC-2025-0225 Dell PowerProtect Data Domain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 1, 2025
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- NCSC-2024-0433 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Nov 12, 2024
- SSA-331112 SSA-331112: Multiple Vulnerabilities in SINEC NMS Before V3.0 SP1 Siemens ProductCERT · Nov 12, 2024
- ICSA-24-319-04 Siemens SINEC NMS CISA ICS & IT advisories · Nov 12, 2024
- NCSC-2024-0362 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Sep 10, 2024
- SSA-417159 SSA-417159: Multiple Vulnerabilities in SINEMA Remote Connect Client Before V3.2 SP2 Siemens ProductCERT · Sep 10, 2024
- ICSA-24-256-10 Siemens SINEMA CISA ICS & IT advisories · Sep 10, 2024
- NCSC-2024-0339 Kwetsbaarheden verholpen in Microsoft Mariner NCSC-NL (Netherlands) · Aug 13, 2024
- NCSC-2024-0320 Kwetsbaarheden verholpen in Apple MacOS NCSC-NL (Netherlands) · Jul 30, 2024
- ALAS2023-2024-596 Moderate: curl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 25, 2024
- ALAS2-2024-2526 Moderate: curl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Apr 24, 2024
References
- json
- www
- issue
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMD6UYKCCRCYETWQZUJ65ZRFULT6SHLI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2D44YLAUFJU6BZ4XFG2FYV7SBKXB5IZ6/
- http://www.openwall.com/lists/oss-security/2024/03/27/1
- https://security.netapp.com/advisory/ntap-20240524-0006/
- https://support.apple.com/kb/HT214119
- https://support.apple.com/kb/HT214118
- https://support.apple.com/kb/HT214120
- http://seclists.org/fulldisclosure/2024/Jul/20
- http://seclists.org/fulldisclosure/2024/Jul/18
- http://seclists.org/fulldisclosure/2024/Jul/19