Vulnerability record · CVE-2023-27534 · published 30 March 2023
CVE-2023-27534: Haxx curl path traversal vulnerability
Haxx · Curl
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.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
9 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| https://hackerone.com/reports/1892351 | ExploitThird Party Advisory |
| https://lists.debian.org/debian-lts-announce/2024/03/msg00016.html | Mailing ListThird Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERW | Mailing ListThird Party Advisory |
| https://security.gentoo.org/glsa/202310-12 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20230420-0012/ | Third Party Advisory |
| https://hackerone.com/reports/1892351 | ExploitThird Party Advisory |
| https://lists.debian.org/debian-lts-announce/2024/03/msg00016.html | Mailing ListThird Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERW | Mailing ListThird Party Advisory |
| https://security.gentoo.org/glsa/202310-12 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20230420-0012/ | Third Party Advisory |
Track CVE-2023-27534 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2023-27534), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.
