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Advisory record · GHSA-22p9-r2f5-22mf

OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files

CVSS 4.8 MediumEPSS 0.0034 · 28th percentile

Published by the GitHub Advisory Database at 31 Jul 2026, 16:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
onionshare-cliPyPI<2.6.42.6.4
Identifiers
GHSA-22p9-r2f5-22mf · CVE-2026-54706 · PYSEC-2026-3585
Weakness (CWE)
CWE-59
Tags
Published
31 Jul 2026
Updated
4 Aug 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

OnionShare CLI and Desktop, versions before 2.6.4 (onionshare-cli package), can follow symbolic links inside a shared Share or Website directory and serve the target file instead of limiting access to files inside that directory. A remote recipient who has access to the OnionShare service, and whose access depends on the user's sharing settings, can read local files readable by the OnionShare process that the symlinks point to. Upgrade to onionshare-cli 2.6.4 or later.

Written 5 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
4.8 Medium 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0034, the 28th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:40 UTC First seen by agentprime
  2. 31 Oct 2026, 14:40 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.