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OpenAdvisories
High · 8.8 CVE-2023-27534 EUVD-2023-31289GHSA-4j25-c9rf-fp5f

A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as…

Published Mar 30, 2023 · Updated Oct 14, 2026 · Assigned by hackerone

Description

A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /~2/foo while accessing a server with a specific user.

Affected products

VendorProductAffectedFixed
— https://github.com/curl/curl Fixed in 8.0.0 —

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.

ReleasePackageFixed inAdvisory
Debian 14 curl 7.88.1-7 —
Debian 13 curl 7.88.1-7 —
Debian 12 curl 7.88.1-7 —
Debian 10 curl 7.64.0-4+deb10u9 DLA-3763-1
ReleasePackageFixed inAdvisory
Ubuntu 22.04 LTS curl 7.81.0-1ubuntu1.10 USN-5964-1
Ubuntu 20.04 LTS curl 7.68.0-1ubuntu2.18 USN-5964-1
Ubuntu 18.04 LTS curl 7.58.0-2ubuntu3.24 USN-5964-1
ReleasePackageFixed inAdvisory
RHEL 9 curl +4 7.76.1-26.el9 RHSA-2023:6679
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Red Hat JBoss Core Services 1 jbcs-httpd24-apr-util +8 1.6.1-101.el7jbcs RHSA-2023:3354
Red Hat JBoss Core Services 1 jbcs-httpd24-curl +2 8.0.1-1.el7jbcs RHSA-2023:3354
Red Hat JBoss Core Services 1 jbcs-httpd24-httpd +6 2.4.51-39.el7jbcs RHSA-2023:3354
Red Hat JBoss Core Services 1 jbcs-httpd24-mod_ssl +1 1:2.4.51-39.el7jbcs RHSA-2023:3354
Red Hat JBoss Core Services 1 jbcs-httpd24-openssl +4 1:1.1.1k-14.el7jbcs RHSA-2023:3354

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 9 curl +4 7.76.1-26.el9 ALSA-2023:6679
ReleasePackageFixed inAdvisory
SLES 15 SP4 curl 7.79.1-150400.5.18.1 SUSE-SU-2023:1582-1
SLES 15 SP1 curl 7.60.0-150000.51.1 SUSE-SU-2023:2226-1
SLES 12 SP5 curl 7.60.0-11.60.1 SUSE-SU-2026:0494-1, SUSE-SU-2023:0865-1
SLES 12 SP5 nghttp2 1.39.2-3.20.1 SUSE-SU-2026:0494-1
SLES 12 SP4 curl 7.60.0-4.56.1 SUSE-SU-2023:2228-1
Show 11 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP1 curl 7.60.0-150000.51.1 SUSE-SU-2023:2226-1
SLES for SAP 12 SP5 curl 7.60.0-11.60.1 SUSE-SU-2023:0865-1
SLES for SAP 12 SP4 curl 7.60.0-4.56.1 SUSE-SU-2023:2228-1
SLE Real Time 15 SP3 curl 7.66.0-150200.4.52.1 SUSE-SU-2023:1711-1
SLE Micro 5.3 curl 7.79.1-150400.5.18.1 SUSE-SU-2023:1582-1
SLE Micro 5.2 curl 7.66.0-150200.4.52.1 SUSE-SU-2024:2009-1, SUSE-SU-2023:1711-1
SLE Micro 5.1 curl 7.66.0-150200.4.52.1 SUSE-SU-2024:2009-1, SUSE-SU-2023:1711-1
SLE HPC 15 SP1 curl 7.60.0-150000.51.1 SUSE-SU-2023:2226-1
SUSE OpenStack Cloud Crowbar 9 curl 7.60.0-4.56.1 SUSE-SU-2023:2228-1
SUSE OpenStack Cloud 9 curl 7.60.0-4.56.1 SUSE-SU-2023:2228-1
SUSE Enterprise Storage 6 curl 7.60.0-150000.51.1 SUSE-SU-2023:2226-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed curl 8.0.1-1.1 openSUSE-SU-2024:12812-1
openSUSE Leap 15.4 curl 7.79.1-150400.5.18.1 SUSE-SU-2023:1582-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.3 curl 7.79.1-150400.5.18.1 SUSE-SU-2023:1582-1
ReleasePackageFixed inAdvisory
Alpine v3.24 curl 8.0.0-r0 —
Alpine v3.23 curl 8.0.0-r0 —
Alpine v3.22 curl 8.0.0-r0 —
Alpine v3.21 curl 8.0.0-r0 —
Alpine v3.20 curl 8.0.0-r0 —
Show 6 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Alpine v3.19 curl 8.0.0-r0 —
Alpine v3.18 curl 8.0.0-r0 —
Alpine v3.17 curl 7.88.1-r1 —
Alpine v3.16 curl 8.0.1-r0 —
Alpine v3.15 curl 8.0.1-r0 —
Alpine v3.14 curl 8.0.1-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 curl +4 8.0.1-1.amzn2023 ALAS2023-2023-193
Amazon Linux 2 curl +2 8.0.1-1.amzn2.0.1 ALAS2-2023-2070

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 cmake 3.28.2-1 —
Azure Linux 3 tensorflow 2.16.1-1 —
Azure Linux 2 (CBL-Mariner) cmake 3.21.4-12 —
Azure Linux 2 (CBL-Mariner) curl 8.0.1-1 —
Azure Linux 2 (CBL-Mariner) mysql 8.0.34-1 —
Azure Linux 2 (CBL-Mariner) rust 1.72.0-2 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 curl +4 7.76.1-26.el9 ELSA-2023-6679

Advisories 30

References