Description
When curl < 7.84.0 saves cookies, alt-svc and hsts data to local files, it makes the operation atomic by finalizing the operation with a rename from a temporary name to the final target file name.In that rename operation, it might accidentally *widen* the permissions for the target file, leaving the updated file accessible to more users than intended.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | https://github.com/curl/curl | Fixed in 7.84.0 | — |
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 | 7.84.0-1 | — |
| Debian 13 | curl | 7.84.0-1 | — |
| Debian 12 | curl | 7.84.0-1 | — |
| Debian 11 | curl | 7.74.0-1.3+deb11u2 | DSA-5197-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | curl | 7.81.0-1ubuntu1.3 | USN-5495-1 |
| Ubuntu 20.04 LTS | curl | 7.68.0-1ubuntu2.12 | USN-5495-1 |
| Ubuntu 18.04 LTS | curl | 7.58.0-2ubuntu3.19 | USN-5495-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | curl +4 | 7.76.1-14.el9_0.5 | RHSA-2022:6157 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 | 7.76.1-14.el9_0.5 | ALSA-2022:6157 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | curl | 7.76.1-14.el9_0.5 | RLSA-2022:6157 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | curl | 7.79.1-150400.5.3.1 | SUSE-SU-2022:2305-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | curl | 7.84.0-1.1 | openSUSE-SU-2024:12214-1 |
| openSUSE Leap 15.4 | curl | 7.79.1-150400.5.3.1 | SUSE-SU-2022:2305-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | curl | 7.84.0-r0 | — |
| Alpine v3.23 | curl | 7.84.0-r0 | — |
| Alpine v3.22 | curl | 7.84.0-r0 | — |
| Alpine v3.21 | curl | 7.84.0-r0 | — |
| Alpine v3.20 | curl | 7.84.0-r0 | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | curl | 7.84.0-r0 | — |
| Alpine v3.18 | curl | 7.84.0-r0 | — |
| Alpine v3.17 | curl | 7.84.0-r0 | — |
| Alpine v3.16 | curl | 7.83.1-r2 | — |
| Alpine v3.15 | curl | 7.80.0-r2 | — |
| Alpine v3.14 | curl | 7.79.1-r2 | — |
| Alpine v3.13 | curl | 7.79.1-r2 | — |
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 | 7.79.1-6.amzn2.0.1 | ALAS2-2022-1875 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | curl | 7.84.0-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | curl +4 | 7.76.1-14.el9_0.5 | ELSA-2022-6157 |
Advisories 32
- ALSA-2022:6157 Moderate: curl security update AlmaLinux Security Advisories · Oct 29, 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
- RHSA-2022:6157 Red Hat Security Advisory: curl 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-2022-1846 Apple macOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 11, 2026
- WID-SEC-2023-1350 Splunk Splunk Enterprise: Mehrere Schwachstellen in Komponenten von Drittanbietern BSI CERT-Bund (WID) · Jul 1, 2026
- WID-SEC-2022-1776 Oracle MySQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 28, 2026
- USN-5495-1 curl vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-5197-1 curl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2022:6157 Moderate: curl security update Rocky Linux Security Advisories · Feb 5, 2026
- openSUSE-SU-2024:12214-1 curl-7.84.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:2305-1 Security update for curl SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2229 Splunk Splunk Enterprise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 18, 2025
- WID-SEC-2022-0479 cURL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 6, 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
- VDE-2023-001 PHOENIX CONTACT: Multiple Vulnerabilities in PLCnext Firmware CERT@VDE · Jun 5, 2025
- VDE-2022-046 PHOENIX CONTACT: Multiple Linux component vulnerabilities in PLCnext Firmware CERT@VDE · May 22, 2025
- ICSA-23-194-01 Siemens RUGGEDCOM ROX CISA ICS & IT advisories · May 6, 2025
- ICSA-23-103-09 Siemens SCALANCE XCM332 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-2023-1728 Autodesk AutoCAD: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 11, 2023
- SSA-146325 SSA-146325: Multiple Vulnerabilities in RUGGEDCOM ROX before V2.16 Siemens ProductCERT · Jul 11, 2023
- SSA-942865 SSA-942865: Multiple Vulnerabilities in the Integrated SCALANCE S615 of SINAMICS Medium Voltage Products Siemens ProductCERT · Jun 14, 2023
- ICSA-23-166-12 Siemens SINAMICS Medium Voltage Products CISA ICS & IT advisories · Jun 14, 2023
- SSA-558014 SSA-558014: Third-Party Component Vulnerabilities in SCALANCE XCM332 before V2.2 Siemens ProductCERT · Apr 11, 2023
- ICSA-23-075-01 Siemens SCALANCE, RUGGEDCOM Third-Party CISA ICS & IT advisories · Mar 14, 2023
- SSA-419740 SSA-419740: Multiple Third-Party Component Vulnerabilities in RUGGEDCOM and SCALANCE Products before V7.2 Siemens ProductCERT · Mar 14, 2023
- ALAS2-2022-1875 Moderate: curl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Nov 8, 2022
- ELSA-2022-6157 Moderate: curl security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 25, 2022
References
- https://hackerone.com/reports/1573634
- FEDORA-2022-1b3d7f6973 vendor-advisory
- DSA-5197 vendor-advisory
- https://security.netapp.com/advisory/ntap-20220915-0003/
- https://support.apple.com/kb/HT213488
- 20221030 APPLE-SA-2022-10-27-5 Additional information for APPLE-SA-2022-10-24-2 macOS Ventura 13 mailing-list
- 20221030 APPLE-SA-2022-10-24-2 macOS Ventura 13 mailing-list
- GLSA-202212-01 vendor-advisory