Description
When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when the `CURLOPT_POSTFIELDS` option has been set, if the same handle previously was used to issue a `PUT` request which used that callback. This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use memory after free or similar in the subsequent `POST` request. The problem exists in the logic for a reused handle when it is changed from a PUT to a POST.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | https://github.com/curl/curl | Fixed in 7.86.0 | — |
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 | 7.86.0-1 | — |
| Debian 13 | curl | 7.86.0-1 | — |
| Debian 12 | curl | 7.86.0-1 | — |
| Debian 11 | curl | 7.74.0-1.3+deb11u5 | DSA-5330-1 |
| Debian 10 | curl | 7.64.0-4+deb10u4 | DLA-3288-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | curl | 7.81.0-1ubuntu1.6 | USN-5702-1 |
| Ubuntu 22.04 LTS | mysql-8.0 | 8.0.32-0buntu0.22.04.1 | USN-5823-1 |
| Ubuntu 20.04 LTS | curl | 7.68.0-1ubuntu2.14 | USN-5702-1 |
| Ubuntu 20.04 LTS | mysql-8.0 | 8.0.32-0buntu0.20.04.1 | USN-5823-1 |
| Ubuntu 18.04 LTS | curl | 7.58.0-2ubuntu3.21 | USN-5702-1 |
| Ubuntu 18.04 LTS | mysql-5.7 | 5.7.41-0ubuntu0.18.04.1 | USN-5823-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | curl | 7.47.0-1ubuntu2.19+esm6 | USN-5702-2 |
| Ubuntu Pro 14.04 LTS | curl | 7.35.0-1ubuntu2.20+esm13 | USN-5702-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | curl +4 | 7.76.1-19.el9_1.1 | RHSA-2023:0333 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.0 EUS | curl +4 | 7.76.1-14.el9_0.6 | RHSA-2023:4139 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-curl +2 | 7.86.0-2.el7jbcs | RHSA-2022:8840 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-httpd +6 | 2.4.51-37.el7jbcs | RHSA-2022:8840 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_http2 | 1.15.19-20.el7jbcs | RHSA-2022:8840 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_ssl +1 | 1:2.4.51-37.el7jbcs | RHSA-2022:8840 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-openssl +4 | 1:1.1.1k-13.el7jbcs | RHSA-2022:8840 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | curl +4 | 7.76.1-19.el9_1.1 | ALSA-2023:0333 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | curl | 7.76.1-19.el9_1.1 | RLSA-2023:0333 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | curl | 7.79.1-150400.5.9.1 | SUSE-SU-2022:3785-1 |
| SLES 15 SP3 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
| SLES 15 SP2 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
| SLES 15 SP1 | curl | 7.60.0-150000.38.1 | SUSE-SU-2022:3774-1 |
| SLES 15 | curl | 7.60.0-150000.38.1 | SUSE-SU-2022:3774-1 |
Show 22 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | curl | 7.60.0-11.49.1 | SUSE-SU-2022:3769-1 |
| SLES 12 SP4 | curl | 7.60.0-4.43.1 | SUSE-SU-2022:3772-1 |
| SLES 12 SP3 | curl | 7.37.0-37.85.1 | SUSE-SU-2022:3770-1 |
| SLES 12 SP2 | curl | 7.37.0-37.85.1 | SUSE-SU-2022:3770-1 |
| SLES for SAP 15 SP2 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
| SLES for SAP 15 SP1 | curl | 7.60.0-150000.38.1 | SUSE-SU-2022:3774-1 |
| SLES for SAP 15 | curl | 7.60.0-150000.38.1 | SUSE-SU-2022:3774-1 |
| SLES for SAP 12 SP5 | curl | 7.60.0-11.49.1 | SUSE-SU-2022:3769-1 |
| SLES for SAP 12 SP4 | curl | 7.60.0-4.43.1 | SUSE-SU-2022:3772-1 |
| SLE Micro 5.3 | curl | 7.79.1-150400.5.9.1 | SUSE-SU-2022:3785-1 |
| SLE Micro 5.2 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
| SLE Micro 5.1 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
| SLE HPC 15 SP2 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
| SLE HPC 15 SP1 | curl | 7.60.0-150000.38.1 | SUSE-SU-2022:3774-1 |
| SLE HPC 15 | curl | 7.60.0-150000.38.1 | SUSE-SU-2022:3774-1 |
| SUSE OpenStack Cloud Crowbar 9 | curl | 7.60.0-4.43.1 | SUSE-SU-2022:3772-1 |
| SUSE OpenStack Cloud 9 | curl | 7.60.0-4.43.1 | SUSE-SU-2022:3772-1 |
| SUSE Manager Server 4.1 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
| SUSE Manager Retail Branch Server 4.1 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
| SUSE Manager Proxy 4.1 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
| SUSE Enterprise Storage 7 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
| SUSE Enterprise Storage 6 | curl | 7.60.0-150000.38.1 | SUSE-SU-2022:3774-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | curl | 7.86.0-1.1 | openSUSE-SU-2024:12447-1 |
| openSUSE Leap 15.4 | curl | 7.79.1-150400.5.9.1 | SUSE-SU-2022:3785-1 |
| openSUSE Leap 15.3 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.2 | curl | 7.66.0-150200.4.42.1 | SUSE-SU-2022:3773-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | curl | 7.86.0-r0 | — |
| Alpine v3.23 | curl | 7.86.0-r0 | — |
| Alpine v3.22 | curl | 7.86.0-r0 | — |
| Alpine v3.21 | curl | 7.86.0-r0 | — |
| Alpine v3.20 | curl | 7.86.0-r0 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | curl | 7.86.0-r0 | — |
| Alpine v3.18 | curl | 7.86.0-r0 | — |
| Alpine v3.17 | curl | 7.86.0-r0 | — |
| Alpine v3.16 | curl | 7.83.1-r4 | — |
| Alpine v3.15 | curl | 7.80.0-r4 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | curl +4 | 7.87.0-2.amzn2023.0.2 | ALAS2023-2023-083 |
| Amazon Linux 2 | curl +2 | 7.79.1-7.amzn2.0.1 | ALAS2-2022-1882 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | tensorflow | 2.16.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | curl +4 | 7.76.1-19.el9_1.1 | ELSA-2023-0333 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | curl | 7.86.0-r0 | — |
Advisories 37
- ALSA-2023:0333 Moderate: curl security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2023:4139 Red Hat Security Advisory: curl security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2023:0333 Red Hat Security Advisory: curl security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2022:8840 Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.51 SP1 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-2024-0794 Dell ECS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
- WID-SEC-2023-1350 Splunk Splunk Enterprise: Mehrere Schwachstellen in Komponenten von Drittanbietern BSI CERT-Bund (WID) · Jul 1, 2026
- WID-SEC-2023-2917 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2026
- USN-5702-2 curl vulnerability Ubuntu Security Notices (USN) · Jun 29, 2026
- WID-SEC-2023-0126 Oracle MySQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 28, 2026
- USN-5823-1 mysql-5.7, mysql-8.0 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-5702-1 curl vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- WID-SEC-2022-1862 cURL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 23, 2026
- DSA-5330-1 curl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3288-1 curl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2023:0333 Moderate: curl security update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2022:3769-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3770-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3772-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3774-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3773-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12447-1 curl-7.86.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3785-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2026-0180 Dell Data Protection Advisor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 20, 2026
- WID-SEC-2023-2229 Splunk Splunk Enterprise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 18, 2025
- WID-SEC-2024-3377 Dell PowerProtect Data Domain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 12, 2025
- WID-SEC-2023-1424 Xerox FreeFlow Print Server für Solaris: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 6, 2025
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- ICSA-23-131-05 Siemens SINEC NMS Third-Party CISA ICS & IT advisories · May 6, 2025
- ALAS2023-2023-083 Moderate: curl security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 15, 2024
- WID-SEC-2023-1614 Tenable Security Nessus Network Monitor: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 25, 2023
- WID-SEC-2023-0189 Apple macOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 7, 2023
- WID-SEC-2023-1728 Autodesk AutoCAD: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 11, 2023
- SSA-892048 SSA-892048: Third-Party Component Vulnerabilities in SINEC NMS before V1.0.3.1 Siemens ProductCERT · May 9, 2023
- ELSA-2023-0333 Moderate: curl security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jan 24, 2023
- WID-SEC-2022-2372 genua genugate: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 19, 2023
- ALAS2-2022-1882 Moderate: curl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Dec 6, 2022
References
- https://hackerone.com/reports/1704017
- GLSA-202212-01 vendor-advisory
- https://security.netapp.com/advisory/ntap-20230110-0006/
- https://support.apple.com/kb/HT213604
- https://support.apple.com/kb/HT213605
- 20230123 APPLE-SA-2023-01-23-5 macOS Monterey 12.6.3 mailing-list
- 20230123 APPLE-SA-2023-01-23-4 macOS Ventura 13.2 mailing-list
- DSA-5330 vendor-advisory
- [debian-lts-announce] 20230128 [SECURITY] [DLA 3288-1] curl security update mailing-list
- https://security.netapp.com/advisory/ntap-20230208-0002/
- [oss-security] 20230517 curl: CVE-2023-28322: more POST-after-PUT confusion mailing-list