How severe is CVE-2026-25765?

CVE-2026-25765 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-25765 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-25765?

CVE-2026-25765 affects Faraday Project Faraday. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-25765?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-25765 have an EU (EUVD) identifier?

Yes. CVE-2026-25765 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6851.

When was CVE-2026-25765 published?

CVE-2026-25765 was published on 2026-02-09 and last updated on 2026-06-17.

CVE-2026-25765

CVE-2026-25765 is a medium-severity vulnerability in Faraday Project Faraday with a CVSS 3.x base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: Medium (CVSS 3.x base score 5.8)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6851
Weakness: CWE-918
Affected product: Faraday Project Faraday
Published: 2026-02-09
Last modified: 2026-06-17

Description

Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Prior to 2.14.1, Faraday's build_exclusive_url method (in lib/faraday/connection.rb) uses Ruby's URI#merge to combine the connection's base URL with a user-supplied path. Per RFC 3986, protocol-relative URLs (e.g. //evil.com/path) are treated as network-path references that override the base URL's host/authority component. This means that if any application passes user-controlled input to Faraday's get(), post(), build_url(), or other request methods, an attacker can supply a protocol-relative URL like //attacker.com/endpoint to redirect the request to an arbitrary host, enabling Server-Side Request Forgery (SSRF). This vulnerability is fixed in 2.14.1.

Frequently asked questions

What is CVE-2026-25765?: Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Prior to 2.14.1, Faraday's build_exclusive_url method (in lib/faraday/connection.rb) uses Ruby's URI#merge to combine the connection's base URL with a user-supplied path. Per RFC 3986, protocol-relative URLs (e.g. //evil.com/path) are treated as network-path references that override the base URL's host/authority component. This means that if any application passes user-controlled input to Faraday's get(), post(), build_url(), or other request methods, an attacker can supply a protocol-relative URL like //attacker.com/endpoint to redirect the request to an arbitrary host, enabling Server-Side Request Forgery (SSRF). This vulnerability is fixed in 2.14.1.
How severe is CVE-2026-25765?: CVE-2026-25765 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-25765 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-25765?: CVE-2026-25765 affects Faraday Project Faraday. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-25765?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-25765 have an EU (EUVD) identifier?: Yes. CVE-2026-25765 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6851.
When was CVE-2026-25765 published?: CVE-2026-25765 was published on 2026-02-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:faraday_project:faraday:*:*:*:*:*:*:*:*

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