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Advisory record · GHSA-87pf-fpwv-p7m7

net-imap vulnerable to denial of service via high iteration count for `SCRAM-*` authentication

CVSS 6.0 MediumEPSS 0.0030 · 22nd percentile

Published by the GitHub Advisory Database at 4 May 2026, 22:03 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
net-imapRubyGems>=0.6.0, <0.6.4 || >=0.5.0, <0.5.14 || >=0.4.0, <0.4.240.6.4, 0.5.14, 0.4.24
Identifiers
GHSA-87pf-fpwv-p7m7 · CVE-2026-42256
Weakness (CWE)
CWE-770 · CWE-1322
Tags
Published
4 May 2026
Updated
10 Sept 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
6.0 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0030, the 22nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:16 UTC First seen by agentprime
  2. 31 Oct 2026, 15:16 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.