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Vulnerabilities / CVE-2015-1820

critical

CVE-2015-1820

rubygem-rest-client: session fixation vulnerability Set-Cookie headers present in an HTTP 30x redirection responses

Published Modified CWE 384
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat4.3AV:N/AC:M/Au:N/C:P/I:N/A:N

Trivy's own label is CRITICAL. Rated critical by NVD, GHSA, Ruby Advisory DB. Rated lower by Red Hat (medium).

Description

REST client for Ruby (aka rest-client) before 1.8.0 allows remote attackers to conduct session fixation attacks or obtain sensitive cookie information by leveraging passage of cookies set in a response to a redirect.

Affected packages and fixed versions

SourcePackageFixed in
rubygems::GitHub Security Advisory RubyGemsrest-client1.8.0
rubygems::Ruby Advisory Databaserest-client>= 1.8.0
debian 11ruby-rest-client1.6.7-6
debian 12ruby-rest-client1.6.7-6
debian 13ruby-rest-client1.6.7-6
debian 14ruby-rest-client1.6.7-6
debian 7ruby-rest-clientno fix listed
echoruby-rest-client1.6.7-6

References

All 10 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.