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Vulnerability record · CVE-2022-31033 · published 9 June 2022

CVE-2022-31033: Mechanize project mechanize information exposure vulnerability

Mechanize Project · Mechanize

The Mechanize library is used for automating interaction with websites. Mechanize automatically stores and sends cookies, follows redirects, and can follow links and submit forms. In versions prior to 2.8.5 the Authorization header is leaked after a redirect to a different port on the same site. Users are advised to upgrade to Mechanize v2.8.5 or later. There are no known workarounds for this issue.

7.5 CVSS 3.1 High EPSS 1.5% · top 27.4% CWE-200 · Information exposure
7.5CVSS 3.1 base score, v2 5.0
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

The Mechanize library is used for automating interaction with websites. Mechanize automatically stores and sends cookies, follows redirects, and can follow links and submit forms. In versions prior to 2.8.5 the Authorization header is leaked after a redirect to a different port on the same site. Users are advised to upgrade to Mechanize v2.8.5 or later. There are no known workarounds for this issue.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/sparklemotion/mechanize/commit/c7fe6996a5b95f9880653ba3bc548a8d4ef72317 PatchThird Party Advisory
https://github.com/sparklemotion/mechanize/security/advisories/GHSA-64qm-hrgp-pgr9 Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7OKZMR5O3T5HQ2V737TC7IU
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OA2FJROTX2U6EBWDPKRQ2VA
https://github.com/sparklemotion/mechanize/commit/c7fe6996a5b95f9880653ba3bc548a8d4ef72317 PatchThird Party Advisory
https://github.com/sparklemotion/mechanize/security/advisories/GHSA-64qm-hrgp-pgr9 Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7OKZMR5O3T5HQ2V737TC7IU
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OA2FJROTX2U6EBWDPKRQ2VA

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Source: NIST National Vulnerability Database (record CVE-2022-31033), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.