CVE catalog
CVE-2026-107715
The Mechanize library is used for automating interaction with websites. Prior to 2.14.1, Mechanize sends caller-supplied credential headers to a different host after an HTTP redirect. Mechanize#reques
- Severity
- Medium · CVSS 6.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.50% · Oct 25, 2026
The Mechanize library is used for automating interaction with websites. Prior to 2.14.1, Mechanize sends caller-supplied credential headers to a different host after an HTTP redirect. Mechanize#request_headers= is reapplied by Mechanize::HTTP::Agent#request_add_headers even after Mechanize::HTTP::Agent#response_redirect strips per-request headers, and the protected header lists omit Proxy-Authorization and Cookie2. An attacker who controls a redirect target can capture bearer tokens or session cookies supplied through request_headers= or the per-request headers argument, while Mechanize#cookie_jar and Mechanize::HTTP::AuthStore are not affected. This issue is fixed in version 2.14.1.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | ruby-mechanize | sid | 2.14.1-1 | fixed |
| Debian | ruby-mechanize | forky | 2.14.1-1 | fixed |
| Debian | ruby-mechanize | trixie | 2.10.1-1 | vulnerable |
| Debian | ruby-mechanize | bookworm | 2.8.5-1 | vulnerable |
| Rubygems | mechanize | Not reported | 2.14.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ruby-mechanize | source | sid | 2.14.1-1 | not yet assigned | Not reported | Not reported |
| Debian | ruby-mechanize | source | forky | 2.14.1-1 | not yet assigned | Not reported | Not reported |
| Debian | ruby-mechanize | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | ruby-mechanize | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Rubygems | mechanize | rubygems | Not reported | 2.14.1 | Not reported | GHSA-2MWR-XJCG-37J7 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [ruby-mechanize]Affected
Details (2)
2.8.5-1· all · bookwormAffected
nvd · ruby-mechanize · debian · bookworm; nvd · ruby-mechanize · debian · 12
2.8.5-1· all · bookwormAffected
nvd · ruby-mechanize · debian · bookworm; nvd · ruby-mechanize · debian · 12
[Debian 13 (Trixie)]
- [ruby-mechanize]Affected
Details (2)
2.10.1-1· all · trixieAffected
nvd · ruby-mechanize · debian · 13
2.10.1-1· all · trixieAffected
nvd · ruby-mechanize · debian · 13
Observed:
References
- [https://github.com/advisories/GHSA-2mwr-xjcg-37j7]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-107715]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-107715]
- [https://security-tracker.debian.org/tracker/CVE-2026-107715]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-107715.json]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]