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.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3763-1 curl security update
Debian DLA Debian DLA DLA-4213-1 curl regression update
EUVD EUVD EUVD-2023-31289 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.
Ubuntu USN Ubuntu USN USN-5964-1 curl vulnerabilities
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cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2025-04-23T16:23:04.273Z

Reserved: 2023-03-02T00:00:00.000Z

Link: CVE-2023-27534

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-03-30T20:15:07.427

Modified: 2025-04-23T17:16:28.313

Link: CVE-2023-27534

cve-icon Redhat

Severity : Low

Publid Date: 2023-03-20T00:00:00Z

Links: CVE-2023-27534 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses