CVE-2026-107714

MEDIUMPre-NVD 5.95.9
EchelonGraph scoreLOW confidence

This medium-severity CVE scores 5.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: secondary
Trending — 3 sources updated this week
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The Mechanize library is used for automating interaction with websites. Prior to 2.14.1, Mechanize::HTTP::Agent#response_redirect treats redirects as same-origin when the host matches without consistently comparing scheme and port. A same-host HTTPS-to-HTTP redirect can send Authorization and Cookie headers over cleartext, while a same-host redirect to another port can send a caller-supplied Cookie header to a different service. Cookies in Mechanize#cookie_jar remain scoped separately; the issue affects caller-supplied headers and can disclose credentials without affecting integrity or availability. This issue is fixed in version 2.14.1.

CVSS v3
5.9
EG Score
5.9MEDIUMlow confidence
EG Risk
27
EG Risk 27/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity59% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
12th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 8, 2026

Last Modified

October 9, 2026

Advisory Details (5)

Auto-updated Oct 8, 2026
Patch available. Sources: github_release, github, github_commit, github_pr.
githubMentions a patch (unverified)

Mechanize sends credential headers to a different scheme or port after a redirect · Advisory · sparklemotion/mechanize · GitHub

https://github.com/sparklemotion/mechanize/security/advisories/GHSA-5jgv-wc2m-xv99
github_release Patch Available

2.14.1

Patch available: sparklemotion/mechanize v2.14.1

https://github.com/sparklemotion/mechanize/releases/tag/v2.14.1
github_pr Patch Available

Withhold credential headers across an origin on redirect and meta refresh

Patch available: sparklemotion/mechanize v2.14.1 (PR #676 merged 2026-08-22)

https://github.com/sparklemotion/mechanize/pull/676
github_commit Patch Available

commit 2f97fe358a91 (sparklemotion/mechanize)

Patch available: sparklemotion/mechanize v2.14.1 (contains commit 2f97fe358a91)

https://github.com/sparklemotion/mechanize/commit/2f97fe358a91928e5e48221f2ec5cb50fa1a43ba
github_commit Patch Available

commit 02a1235842d6 (sparklemotion/mechanize)

Patch available: sparklemotion/mechanize v2.14.1 (contains commit 02a1235842d6)

https://github.com/sparklemotion/mechanize/commit/02a1235842d6eda8d4a5a3d8f13aba2cecf52e4f

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 6× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-09 20:06 UTCEPSS rescore
  2. 2026-10-09 16:34 UTCEG score recompute
  3. 2026-10-09 15:26 UTCEG score recompute
  4. 2026-10-08 22:22 UTCEG score recompute
  5. 2026-10-08 21:29 UTCEG score recompute
  6. 2026-10-08 21:28 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-107714?
CVE-2026-107714 is a medium vulnerability published on October 8, 2026. The Mechanize library is used for automating interaction with websites. Prior to 2.14.1, Mechanize::HTTP::Agent#responseredirect treats redirects as same-origin when the host matches without consistently comparing scheme and port. A same-host HTTPS-to-HTTP redirect can send Authorization and Cookie…
When was CVE-2026-107714 disclosed?
CVE-2026-107714 was first published on October 8, 2026, with the most recent update on October 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-107714 actively exploited?
CVE-2026-107714 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-107714?
CVE-2026-107714 has a CVSS base score of 5.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-107714?
A fix for CVE-2026-107714 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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