Medium severity6.5NVD Advisory· Published Jul 17, 2026· Updated Jul 29, 2026
CVE-2026-54171
CVE-2026-54171
Description
Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial request includes header information that is not intended for the new target. This issue is fixed in version 1.5.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
exconRubyGems | < 1.5.0 | 1.5.0 |
Affected products
8- osv-coords6 versionspkg:apk/chainguard/cinc-auditorpkg:apk/chainguard/ruby3.2-kube-logging-operator-fluentd-outputspkg:apk/chainguard/ruby3.4-kube-logging-operator-fluentd-outputspkg:apk/wolfi/cinc-auditorpkg:apk/wolfi/ruby3.2-kube-logging-operator-fluentd-outputspkg:apk/wolfi/ruby3.4-kube-logging-operator-fluentd-outputs
< 7.1.7-r6+ 5 more
- (no CPE)range: < 7.1.7-r6
- (no CPE)range: < 6.7.0-r8
- (no CPE)range: < 6.7.0-r8
- (no CPE)range: < 7.1.7-r6
- (no CPE)range: < 6.7.0-r8
- (no CPE)range: < 6.7.0-r8
Patches
Vulnerability mechanics
References
7- github.com/excon/excon/commit/ea89a35308a12f4b791b6c50f2cbd33f94889fa3nvdPatchWEB
- github.com/excon/excon/pull/901nvdIssue TrackingPatchWEB
- github.com/excon/excon/security/advisories/GHSA-48rx-c7pg-q66rnvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-48rx-c7pg-q66rghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-54171ghsaADVISORY
- github.com/rubysec/ruby-advisory-db/blob/master/gems/excon/CVE-2026-54171.ymlghsaWEB
- www.cve.org/CVERecordghsaWEB
News mentions
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