CVE-2018-1000850

Exp

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.

Published: 2018-12-20 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-1000850 is rated High Exploit Risk (77.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.06%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.07% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-1000850

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-1000850

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-04 0.99% 3.06% +2.07%
2 2026-03-01 3.06% 0.99% -2.07%
3 2026-02-04 — 3.06% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-1000850

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2018-1000850

GitHub Security Advisory for CVE-2018-1000850

GHSA-8p8g-f9vg-r7xr · Severity: high · Ecosystem: maven — Directory Traversal vulnerability in Square Retrofit

OS Trackers for CVE-2018-1000850

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2018-1000850

Affected software / configurations for CVE-2018-1000850

Vendor Product Version Raw CPE
squareup retrofit >= 2.0.0, < 2.5.0 cpe:2.3:a:squareup:retrofit:*:*:*:*:*:*:*:*

References for CVE-2018-1000850

cvelogic Threat Intelligence