6.5

CVE-2026-33637: faraday_project faraday Server-Side Request Forgery (SSRF)

CVSS: 6.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-33637DEBIAN-CVE-2026-33637CGA-235p-wx9v-fwxr
Published 19-05-2026Last modified 19-05-2026
Open JSON

Vulnerability summary

CVE-2026-33637 is a medium (CVSS 6.5) Server-Side Request Forgery (SSRF) vulnerability in faraday_project faraday. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.29%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 0 · Related 2
CGA-G4XG-X6CR-W829CVE-2026-25765

Timeline

  1. 19-05-2026
    PublishedVulnerability first disclosed.
  2. 19-05-2026
    Last modifiedVulnerability information updated.

Description

Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Versions 2.0.0 through 2.14.1 still allow protocol-relative host override when the request target is passed as a URI object (rather than a String) to Faraday::Connection#build_exclusive_url. This bypasses the February 2026 fix for GHSA-33mh-2634-fwr2 and enables off-host request forgery: a request built from a fixed-base Faraday::Connection can be redirected to an attacker-controlled host, forwarding connection-scoped values such as Authorization headers and default query parameters. This issue has been fixed in version 2.14.3.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

+0.02 pp

From 0.27% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Faraday

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Chainguard50 products
  • cinc-auditor< 7.1.7-r0
  • gitlab-exporter-18.10All versions (No fix recorded)
  • gitlab-exporter-18.11< 18.11.5-r2
  • gitlab-exporter-18.9All versions (No fix recorded)
  • gitlab-exporter-19.0< 19.0.2-r1
Wolfi8 products
  • cinc-auditor< 7.1.7-r0
  • kube-fluentd-operator< 1.18.2-r70
  • logstash-9.3< 9.3.4-r4
  • logstash-9.3-iamguarded-compat< 9.3.4-r4
  • logstash-9.4< 9.4.1-r2
Debian1 product
  • ruby-faraday< 2.14.3-1
Faraday_project1 product
Lostisland1 product
RubyGems1 product
  • faraday≥ 2.0.0, < 2.14.2
Ubuntu1 product
  • ruby-faradayAll versions (No fix recorded)

7 vendors · 63 products

References

9 links