Advisory record · GHSA-556j-vv39-8rqv

Banks: Symlink traversal and arbitrary file disclosure/overwrite in DirectoryPromptRegistry

CVSS 7.3 HighEPSS 0.0013 · 2nd percentile

Published by the GitHub Advisory Database at 8 Oct 2026, 22:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
banksPyPI<2.5.12.5.1
Identifiers
GHSA-556j-vv39-8rqv · CVE-2026-107716 · PYSEC-2026-4201
Weakness (CWE)
CWE-22 · CWE-59
Published
8 Oct 2026
Updated
15 Oct 2026

Machine-written summary

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

The banks package, versions before 2.5.1, is vulnerable in DirectoryPromptRegistry, where prompt files and the index.json file are not checked for symbolic links. An attacker who can place symlinks in a prompt directory, such as through an unpacked archive or a shared folder, could read arbitrary files outside the registry root or overwrite them when prompts are saved. Upgrade banks to version 2.5.1 or later.

Written 1 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
7.3 High 4.0 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0013, the 2nd percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:08 UTC First seen by agentprime
  2. 31 Oct 2026, 14:08 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.