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In RubyGem excon before 0.71.0, there was a race condition around persistent connections, where a connection which is interrupted (such as by a timeout) would leave data on the socket. Subsequent req…

Medium CVSS 5.8
CVECVE-2019-16779
First seen2026-07-28 19:15 UTC
Disclosed2019-12-16 20:15 UTC
Last updated2026-07-28 19:15 UTC
Channel statusauto

Summary

In RubyGem excon before 0.71.0, there was a race condition around persistent connections, where a connection which is interrupted (such as by a timeout) would leave data on the socket. Subsequent requests would then read this data, returning content from the previous response. The race condition window appears to be short, and it would be difficult to purposefully exploit this.

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Affected products

  • :
  • :
  • :
Lint boundary warnings (4)

The following non-blocking warnings were raised during the lint phase of this triage (e.g. reference URLs not yet on the allowlist). They do not affect entry usability and are disclosed for transparency (see DR-002).

  • REF_URL_NOT_ALLOWLISTED url not in allowlist: http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00021.html
  • REF_URL_NOT_ALLOWLISTED url not in allowlist: http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00062.html
  • REF_URL_NOT_ALLOWLISTED url not in allowlist: http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00021.html
  • REF_URL_NOT_ALLOWLISTED url not in allowlist: http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00062.html

Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD