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Advisory record · GHSA-r4q5-vmmm-2653

follow-redirects leaks Custom Authentication Headers to Cross-Domain Redirect Targets

CVSS 6.9 MediumEPSS 0.0049 · 42nd percentile

Published by the GitHub Advisory Database at 14 Apr 2026, 01:11 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
follow-redirectsnpm<1.16.01.16.0
Identifiers
GHSA-r4q5-vmmm-2653 · CVE-2026-40895
Weakness (CWE)
CWE-200 · CWE-212
Tags
Published
14 Apr 2026
Updated
2 Nov 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.9 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0049, the 42nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 14 Apr 2026, 01:11 UTC Confirmed by GitHub Advisory Database
  2. 21 Apr 2026, 19:59 UTC Confirmed by the CVE List
  3. 21 Apr 2026, 21:16 UTC Confirmed by NVD
  4. 2 Nov 2026, 23:30 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.