What’s Vulnerable › Vulnerabilities
CVE-2018-1000850
- Severity: high (CVSS 7.5 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 4.0% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2018-12-20 · updated 2026-06-17
- Weakness: CWE-22
Description
Square Retrofit version versions from (including) 2.0 and 2.5.0 (excluding) contains a Directory Traversal vulnerability in RequestBuilder class, method addPathParameter that can result in By manipulating the URL an attacker could add or delete resources otherwise unavailable to her.. This attack appear to be exploitable via An attacker should have access to an encoded path parameter on POST, PUT or DELETE request.. This vulnerability appears to have been fixed in 2.5.0 and later.
Affected products
- Squareup Retrofit: from 2.0.0 before 2.5.0 — fixed in 2.5.0
How to fix
Upgrade to a fixed version: Squareup Retrofit 2.5.0. Check the vendor advisory for mitigations.
References
- https://access.redhat.com/errata/RHSA-2019:3892
- https://github.com/square/retrofit/blob/master/CHANGELOG.md
- https://github.com/square/retrofit/commit/b9a7f6ad72073ddd40254c0058710e87a073047d#diff-943ec7ed35e68201824904d1dc0ec982
- https://ihacktoprotect.com/post/retrofit-path-traversal/
- https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f%40%3Cdev.drill.apache.org%3E
- https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442%40%3Cdev.drill.apache.org%3E
- https://lists.apache.org/thread.html/f9bc3e55f4e28d1dcd1a69aae6d53e609a758e34d2869b4d798e13cc%40%3Cissues.drill.apache.org%3E
- https://access.redhat.com/errata/RHSA-2019:3892
- https://github.com/square/retrofit/blob/master/CHANGELOG.md
- https://github.com/square/retrofit/commit/b9a7f6ad72073ddd40254c0058710e87a073047d#diff-943ec7ed35e68201824904d1dc0ec982
- https://ihacktoprotect.com/post/retrofit-path-traversal/
- https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f%40%3Cdev.drill.apache.org%3E
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